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ill get on to play on a server and then the game will crash within 5 minutes. This only started when 1.4.2 came out, and it has gotten to the point where i almost cant play. Any help would be greatly appreciated.

I only use optifine when playing, but the game crashes without it anyway. Ive tried deleting and reseting my bin and changeing my settings with no luck. I have to stay on 1.4.2 for the server, which is bukkit. Heres the crash report:


Minecraft has crashed!
----------------------

Minecraft has stopped running because it encountered a problem; Unexpected error
This error has been saved to C:\Users\Charlie McCarthy\AppData\Roaming\.minecraft\crash-reports\crash-2012-11-15_16.05.12-client.txt for your convenience. Please include a copy of this file if you report this crash to anyone.



--- BEGIN ERROR REPORT b4bc9d2d --------
Generated 11/15/12 4:05 PM

- Minecraft Version: 1.4.2
- Operating System: Windows 7 (amd64) version 6.1
- Java Version: 1.6.0_27, Sun Microsystems Inc.
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
- Memory: 339265888 bytes (323 MB) / 522584064 bytes (498 MB) up to 954466304 bytes (910 MB)
- JVM Flags: 2 total; -Xms512m -Xmx1024m
- AABB Pool Size: 4877 (273112 bytes; 0 MB) allocated, 2122 (118832 bytes; 0 MB) used
- LWJGL: 2.4.2
- OpenGL: Intel(R) HD Graphics Family GL version 3.1.0 - Build 8.15.10.2361, Intel
- Is Modded: Very likely
- Type: Client
- Texture Pack: Default
- Profiler Position: N/A (disabled)
- Vec3 Pool Size: 924 (51744 bytes; 0 MB) allocated, 189 (10584 bytes; 0 MB) used
- World MpServer Entities: 97 total; [axc['kingcharlesiii'/2986986, l='MpServer', x=-4015.67, y=64.62, z=57201.33], oi['Chicken'/3006543, l='MpServer', x=-4080.63, y=63.00, z=57214.56], oi['Chicken'/3007035, l='MpServer', x=-4044.47, y=63.00, z=57235.53], oi['Chicken'/3007343, l='MpServer', x=-4030.47, y=63.00, z=57258.53], oi['Chicken'/3007354, l='MpServer', x=-4084.38, y=63.00, z=57170.59], pg['item.item.carrots'/3006901, l='MpServer', x=-4058.63, y=63.13, z=57185.66], qa['Zombie'/3009864, l='MpServer', x=-4049.88, y=22.00, z=57160.00], oo['Sheep'/3007522, l='MpServer', x=-4000.53, y=63.00, z=57155.44], oi['Chicken'/3007353, l='MpServer', x=-4072.91, y=63.00, z=57155.16], oi['Chicken'/3008108, l='MpServer', x=-3985.41, y=63.00, z=57174.63], oo['Sheep'/3008107, l='MpServer', x=-3988.47, y=63.00, z=57151.84], pl['Creeper'/3010458, l='MpServer', x=-3976.50, y=29.00, z=57179.50], oo['Sheep'/3007888, l='MpServer', x=-4033.53, y=63.00, z=57145.50], oo['Sheep'/3007887, l='MpServer', x=-4047.47, y=63.00, z=57140.50], oo['Sheep'/3008286, l='MpServer', x=-4045.50, y=63.00, z=57135.47], oo['Sheep'/3008106, l='MpServer', x=-3998.38, y=63.00, z=57136.22], oo['Sheep'/3007886, l='MpServer', x=-4035.72, y=63.00, z=57137.59], oo['Sheep'/3008285, l='MpServer', x=-4033.09, y=63.00, z=57133.13], oo['Sheep'/3008287, l='MpServer', x=-4042.50, y=63.00, z=57126.59], oo['Sheep'/3008288, l='MpServer', x=-4006.81, y=61.00, z=57127.28], oo['Sheep'/3008289, l='MpServer', x=-3994.38, y=55.00, z=57128.66], oi['Chicken'/3008972, l='MpServer', x=-3961.59, y=63.00, z=57203.59], oi['Chicken'/3008971, l='MpServer', x=-3956.56, y=37.00, z=57156.56], qa['Zombie'/3014893, l='MpServer', x=-3978.44, y=38.00, z=57140.66], qa['Zombie'/3015700, l='MpServer', x=-3999.50, y=25.32, z=57180.52], pl['Creeper'/3016240, l='MpServer', x=-4017.47, y=54.00, z=57207.00], qa['Zombie'/3016926, l='MpServer', x=-3987.63, y=18.00, z=57148.55], pl['Creeper'/3016929, l='MpServer', x=-3961.50, y=37.00, z=57188.50], qa['Zombie'/3017133, l='MpServer', x=-3945.90, y=24.39, z=57176.38], pg['item.item.slimeball'/3017308, l='MpServer', x=-3964.22, y=11.13, z=57169.13], qa['Zombie'/3009384, l='MpServer', x=-3945.28, y=12.00, z=57277.19], pl['Creeper'/3018228, l='MpServer', x=-4040.19, y=33.00, z=57223.09], pw['Skeleton'/3018291, l='MpServer', x=-3952.53, y=33.00, z=57148.97], py['Spider'/3018530, l='MpServer', x=-4071.00, y=29.00, z=57240.34], py['Spider'/3019453, l='MpServer', x=-3974.50, y=65.00, z=57256.50], oo['Sheep'/3007885, l='MpServer', x=-4092.81, y=63.00, z=57138.78], pw['Skeleton'/3019989, l='MpServer', x=-3961.50, y=60.00, z=57130.50], qa['Zombie'/3020012, l='MpServer', x=-3958.60, y=19.00, z=57146.53], pl['Creeper'/3019495, l='MpServer', x=-3944.50, y=65.00, z=57273.28], pw['Skeleton'/3020146, l='MpServer', x=-3957.50, y=39.00, z=57146.50], oi['Chicken'/3008449, l='MpServer', x=-3969.44, y=66.00, z=57282.44], oi['Chicken'/3007523, l='MpServer', x=-4015.59, y=63.00, z=57282.59], qa['Zombie'/3020320, l='MpServer', x=-3953.16, y=63.00, z=57227.97], qa['Zombie'/3020675, l='MpServer', x=-3973.98, y=38.00, z=57193.59], pw['Skeleton'/3021201, l='MpServer', x=-4016.50, y=48.00, z=57161.50], qa['Zombie'/3021239, l='MpServer', x=-3948.00, y=22.00, z=57142.59], pw['Skeleton'/3021269, l='MpServer', x=-4080.04, y=28.00, z=57153.41], pw['Skeleton'/3021271, l='MpServer', x=-4074.50, y=31.00, z=57155.50], pl['Creeper'/3022330, l='MpServer', x=-3936.50, y=46.00, z=57210.50], pw['Skeleton'/3022627, l='MpServer', x=-3992.50, y=30.00, z=57155.50], pw['Skeleton'/3022628, l='MpServer', x=-3994.50, y=30.00, z=57151.50], qa['Zombie'/3022645, l='MpServer', x=-4060.53, y=29.00, z=57243.51], pl['Creeper'/3022979, l='MpServer', x=-3975.50, y=36.00, z=57183.50], pl['Creeper'/3023246, l='MpServer', x=-4042.50, y=63.00, z=57222.50], pl['Creeper'/3023247, l='MpServer', x=-4045.50, y=63.00, z=57220.50], py['Spider'/3023267, l='MpServer', x=-3943.25, y=28.00, z=57186.75], pl['Creeper'/3023288, l='MpServer', x=-3958.69, y=34.00, z=57280.22], pm['Enderman'/3023795, l='MpServer', x=-3977.50, y=40.00, z=57161.50], pw['Skeleton'/3023835, l='MpServer', x=-3984.93, y=37.00, z=57176.50], pl['Creeper'/3023970, l='MpServer', x=-4024.50, y=41.00, z=57150.50], pl['Creeper'/3023994, l='MpServer', x=-4013.91, y=27.00, z=57175.50], qa['Zombie'/3024023, l='MpServer', x=-3993.13, y=30.00, z=57156.66], qa['Zombie'/3024024, l='MpServer', x=-3982.47, y=41.65, z=57148.31], pl['Creeper'/3024040, l='MpServer', x=-3950.50, y=41.00, z=57174.50], pl['Creeper'/3024041, l='MpServer', x=-3956.50, y=13.00, z=57188.50], pw['Skeleton'/3024046, l='MpServer', x=-3969.50, y=38.00, z=57266.50], pl['Creeper'/3024130, l='MpServer', x=-3939.50, y=29.00, z=57155.50], qa['Zombie'/3023239, l='MpServer', x=-3944.31, y=22.53, z=57151.44], qa['Zombie'/3024134, l='MpServer', x=-3942.09, y=32.00, z=57275.34], pl['Creeper'/3024422, l='MpServer', x=-3942.99, y=27.00, z=57149.66], qa['Zombie'/3024549, l='MpServer', x=-3968.41, y=34.00, z=57157.59], pl['Creeper'/3024629, l='MpServer', x=-3938.50, y=30.00, z=57173.50], pl['Creeper'/3024666, l='MpServer', x=-3984.50, y=21.00, z=57154.50], pw['Skeleton'/3024675, l='MpServer', x=-3947.59, y=43.00, z=57193.00], qa['Zombie'/3024676, l='MpServer', x=-3957.06, y=37.17, z=57174.97], pw['Skeleton'/3024686, l='MpServer', x=-4060.50, y=41.00, z=57152.50], pw['Skeleton'/3024687, l='MpServer', x=-4056.88, y=41.00, z=57154.50], pl['Creeper'/3024841, l='MpServer', x=-4012.50, y=47.00, z=57147.50], qa['Zombie'/3024875, l='MpServer', x=-3966.87, y=30.01, z=57181.81], qa['Zombie'/3024876, l='MpServer', x=-3957.34, y=32.00, z=57183.50], pw['Skeleton'/3024877, l='MpServer', x=-3958.50, y=31.00, z=57184.50], pw['Skeleton'/3024878, l='MpServer', x=-3967.50, y=31.00, z=57185.50], og['Bat'/3024906, l='MpServer', x=-3936.47, y=29.40, z=57173.25], og['Bat'/3024995, l='MpServer', x=-4000.50, y=26.09, z=57184.50], og['Bat'/3024998, l='MpServer', x=-3989.25, y=29.00, z=57177.34], pw['Skeleton'/3025058, l='MpServer', x=-4022.25, y=31.00, z=57210.63], pw['Skeleton'/3025059, l='MpServer', x=-4022.50, y=31.00, z=57207.50], pw['Skeleton'/3025060, l='MpServer', x=-4023.50, y=31.00, z=57211.50], qa['Zombie'/3025063, l='MpServer', x=-4019.04, y=30.00, z=57204.59], pw['Skeleton'/3025087, l='MpServer', x=-3955.50, y=28.00, z=57201.50], pw['Skeleton'/3025088, l='MpServer', x=-3955.50, y=28.00, z=57200.50], qa['Zombie'/3025110, l='MpServer', x=-3941.20, y=38.65, z=57257.51], qa['Zombie'/3025111, l='MpServer', x=-3941.84, y=38.00, z=57260.38], qa['Zombie'/3023369, l='MpServer', x=-4039.88, y=63.00, z=57277.00], pw['Skeleton'/3025221, l='MpServer', x=-3937.50, y=25.00, z=57155.50], pm['Enderman'/3025240, l='MpServer', x=-3954.50, y=26.00, z=57187.50], pm['Enderman'/3025241, l='MpServer', x=-3955.94, y=26.00, z=57187.63]]
- World MpServer Players: 1 total; [axc['kingcharlesiii'/2986986, l='MpServer', x=-4015.67, y=64.62, z=57201.33]]
- World MpServer Chunk Stats: MultiplayerChunkCache: 441
- Forced Entities: 106 total; [pl['Creeper'/3022979, l='MpServer', x=-3975.50, y=36.00, z=57183.50], pm['Enderman'/3023795, l='MpServer', x=-3977.50, y=40.00, z=57161.50], pw['Skeleton'/3018291, l='MpServer', x=-3952.53, y=33.00, z=57148.97], py['Spider'/3018530, l='MpServer', x=-4071.00, y=29.00, z=57240.34], og['Bat'/3024906, l='MpServer', x=-3936.47, y=29.40, z=57173.25], qa['Zombie'/3024875, l='MpServer', x=-3966.87, y=30.01, z=57181.81], pw['Skeleton'/3024878, l='MpServer', x=-3967.50, y=31.00, z=57185.50], qa['Zombie'/3024876, l='MpServer', x=-3957.34, y=32.00, z=57183.50], pw['Skeleton'/3024877, l='MpServer', x=-3958.50, y=31.00, z=57184.50], qa['Zombie'/3023239, l='MpServer', x=-3944.31, y=22.53, z=57151.44], pl['Creeper'/3024629, l='MpServer', x=-3938.50, y=30.00, z=57173.50], qa['Zombie'/3020675, l='MpServer', x=-3973.98, y=38.00, z=57193.59], pl['Creeper'/3023246, l='MpServer', x=-4042.50, y=63.00, z=57222.50], pl['Creeper'/3023247, l='MpServer', x=-4045.50, y=63.00, z=57220.50], pw['Skeleton'/3022628, l='MpServer', x=-3994.50, y=30.00, z=57151.50], pg['item.item.slimeball'/3017308, l='MpServer', x=-3964.22, y=11.13, z=57169.13], pl['Creeper'/3019495, l='MpServer', x=-3944.50, y=65.00, z=57273.28], pw['Skeleton'/3022627, l='MpServer', x=-3992.50, y=30.00, z=57155.50], oi['Chicken'/3007035, l='MpServer', x=-4044.47, y=63.00, z=57235.53], qa['Zombie'/3014893, l='MpServer', x=-3978.44, y=38.00, z=57140.66], pl['Creeper'/3023288, l='MpServer', x=-3958.69, y=34.00, z=57280.22], qa['Zombie'/3022645, l='MpServer', x=-4060.53, y=29.00, z=57243.51], pl['Creeper'/3024841, l='MpServer', x=-4012.50, y=47.00, z=57147.50], py['Spider'/3023267, l='MpServer', x=-3943.25, y=28.00, z=57186.75], oi['Chicken'/3008108, l='MpServer', x=-3985.41, y=63.00, z=57174.63], oo['Sheep'/3008106, l='MpServer', x=-3998.38, y=63.00, z=57136.22], oo['Sheep'/3008107, l='MpServer', x=-3988.47, y=63.00, z=57151.84], qa['Zombie'/3020012, l='MpServer', x=-3958.60, y=19.00, z=57146.53], pg['item.tile.hellrock'/3005507, l='MpServer', x=-4234.81, y=63.13, z=57352.31], pw['Skeleton'/3025221, l='MpServer', x=-3937.50, y=25.00, z=57155.50], pl['Creeper'/3010458, l='MpServer', x=-3976.50, y=29.00, z=57179.50], qa['Zombie'/3024549, l='MpServer', x=-3968.41, y=34.00, z=57157.59], pg['item.tile.hellrock'/3005508, l='MpServer', x=-4233.19, y=63.13, z=57351.38], qa['Zombie'/3024024, l='MpServer', x=-3982.47, y=41.65, z=57148.31], pm['Enderman'/3025240, l='MpServer', x=-3954.50, y=26.00, z=57187.50], oo['Sheep'/3008287, l='MpServer', x=-4042.50, y=63.00, z=57126.59], pm['Enderman'/3025241, l='MpServer', x=-3955.94, y=26.00, z=57187.63], oo['Sheep'/3008286, l='MpServer', x=-4045.50, y=63.00, z=57135.47], oo['Sheep'/3008285, l='MpServer', x=-4033.09, y=63.00, z=57133.13], oo['Sheep'/3007522, l='MpServer', x=-4000.53, y=63.00, z=57155.44], qa['Zombie'/3024023, l='MpServer', x=-3993.13, y=30.00, z=57156.66], oi['Chicken'/3007523, l='MpServer', x=-4015.59, y=63.00, z=57282.59], pl['Creeper'/3024040, l='MpServer', x=-3950.50, y=41.00, z=57174.50], pl['Creeper'/3024041, l='MpServer', x=-3956.50, y=13.00, z=57188.50], pw['Skeleton'/3024046, l='MpServer', x=-3969.50, y=38.00, z=57266.50], oo['Sheep'/3008288, l='MpServer', x=-4006.81, y=61.00, z=57127.28], oo['Sheep'/3008289, l='MpServer', x=-3994.38, y=55.00, z=57128.66], pw['Skeleton'/3023835, l='MpServer', x=-3984.93, y=37.00, z=57176.50], oi['Chicken'/3007343, l='MpServer', x=-4030.47, y=63.00, z=57258.53], oi['Chicken'/3008971, l='MpServer', x=-3956.56, y=37.00, z=57156.56], pg['item.tile.dirt'/3007112, l='MpServer', x=-4033.91, y=63.13, z=57180.16], pg['item.item.carrots'/3006901, l='MpServer', x=-4058.63, y=63.13, z=57185.66], oi['Chicken'/3008972, l='MpServer', x=-3961.59, y=63.00, z=57203.59], pw['Skeleton'/3019989, l='MpServer', x=-3961.50, y=60.00, z=57130.50], og['Bat'/3024998, l='MpServer', x=-3989.25, y=29.00, z=57177.34], py['Spider'/3019453, l='MpServer', x=-3974.50, y=65.00, z=57256.50], oi['Chicken'/3007353, l='MpServer', x=-4072.91, y=63.00, z=57155.16], og['Bat'/3024995, l='MpServer', x=-4000.50, y=26.09, z=57184.50], oi['Chicken'/3006543, l='MpServer', x=-4080.63, y=63.00, z=57214.56], oi['Chicken'/3007354, l='MpServer', x=-4084.38, y=63.00, z=57170.59], axc['kingcharlesiii'/2986986, l='MpServer', x=-4015.67, y=64.62, z=57201.33], oi['Chicken'/3008449, l='MpServer', x=-3969.44, y=66.00, z=57282.44], pg['item.item.glassBottle'/3007341, l='MpServer', x=-4031.72, y=64.13, z=57178.53], qa['Zombie'/3016926, l='MpServer', x=-3987.63, y=18.00, z=57148.55], qa['Zombie'/3015700, l='MpServer', x=-3999.50, y=25.32, z=57180.52], pl['Creeper'/3016240, l='MpServer', x=-4017.47, y=54.00, z=57207.00], pg['item.item.carrots'/3006901, l='MpServer', x=-4058.63, y=63.13, z=57185.66], pg['item.item.slimeball'/3017308, l='MpServer', x=-3964.22, y=11.13, z=57169.13], qa['Zombie'/3023369, l='MpServer', x=-4039.88, y=63.00, z=57277.00], qa['Zombie'/3020320, l='MpServer', x=-3953.16, y=63.00, z=57227.97], pl['Creeper'/3023970, l='MpServer', x=-4024.50, y=41.00, z=57150.50], pw['Skeleton'/3025087, l='MpServer', x=-3955.50, y=28.00, z=57201.50], pw['Skeleton'/3021271, l='MpServer', x=-4074.50, y=31.00, z=57155.50], pw['Skeleton'/3025058, l='MpServer', x=-4022.25, y=31.00, z=57210.63], qa['Zombie'/3009864, l='MpServer', x=-4049.88, y=22.00, z=57160.00], pw['Skeleton'/3025059, l='MpServer', x=-4022.50, y=31.00, z=57207.50], pw['Skeleton'/3021269, l='MpServer', x=-4080.04, y=28.00, z=57153.41], pw['Skeleton'/3025060, l='MpServer', x=-4023.50, y=31.00, z=57211.50], qa['Zombie'/3025063, l='MpServer', x=-4019.04, y=30.00, z=57204.59], pl['Creeper'/3016929, l='MpServer', x=-3961.50, y=37.00, z=57188.50], pl['Creeper'/3023994, l='MpServer', x=-4013.91, y=27.00, z=57175.50], qa['Zombie'/3025111, l='MpServer', x=-3941.84, y=38.00, z=57260.38], qa['Zombie'/3025110, l='MpServer', x=-3941.20, y=38.65, z=57257.51], pg['item.tile.stonebrick'/3005602, l='MpServer', x=-4107.88, y=63.13, z=57240.88], pl['Creeper'/3024422, l='MpServer', x=-3942.99, y=27.00, z=57149.66], pg['item.tile.stonebrick'/3005601, l='MpServer', x=-4107.13, y=63.13, z=57241.88], pw['Skeleton'/3020146, l='MpServer', x=-3957.50, y=39.00, z=57146.50], pg['item.tile.stonebrick'/3005603, l='MpServer', x=-4107.13, y=64.13, z=57242.13], qa['Zombie'/3024676, l='MpServer', x=-3957.06, y=37.17, z=57174.97], pl['Creeper'/3024130, l='MpServer', x=-3939.50, y=29.00, z=57155.50], pw['Skeleton'/3024675, l='MpServer', x=-3947.59, y=43.00, z=57193.00], pw['Skeleton'/3025088, l='MpServer', x=-3955.50, y=28.00, z=57200.50], pl['Creeper'/3022330, l='MpServer', x=-3936.50, y=46.00, z=57210.50], qa['Zombie'/3024134, l='MpServer', x=-3942.09, y=32.00, z=57275.34], qa['Zombie'/3021239, l='MpServer', x=-3948.00, y=22.00, z=57142.59], pw['Skeleton'/3024687, l='MpServer', x=-4056.88, y=41.00, z=57154.50], pw['Skeleton'/3024686, l='MpServer', x=-4060.50, y=41.00, z=57152.50], oo['Sheep'/3007887, l='MpServer', x=-4047.47, y=63.00, z=57140.50], oo['Sheep'/3007886, l='MpServer', x=-4035.72, y=63.00, z=57137.59], oo['Sheep'/3007885, l='MpServer', x=-4092.81, y=63.00, z=57138.78], qa['Zombie'/3017133, l='MpServer', x=-3945.90, y=24.39, z=57176.38], pl['Creeper'/3024666, l='MpServer', x=-3984.50, y=21.00, z=57154.50], pw['Skeleton'/3021201, l='MpServer', x=-4016.50, y=48.00, z=57161.50], oo['Sheep'/3007888, l='MpServer', x=-4033.53, y=63.00, z=57145.50], pl['Creeper'/3018228, l='MpServer', x=-4040.19, y=33.00, z=57223.09], qa['Zombie'/3009384, l='MpServer', x=-3945.28, y=12.00, z=57277.19]]
- Retry Entities: 0 total; []

java.lang.ClassCastException: ajo cannot be cast to ahz
at bbq.a(SourceFile:25)
at bbq.a(SourceFile:10)
at bby.a(SourceFile:103)
at bby.a(SourceFile:96)
at ayy.a(RenderGlobal.java:485)
at ayt.a(EntityRenderer.java:1569)
at ayt.b(EntityRenderer.java:1118)
at net.minecraft.client.Minecraft.J(SourceFile:604)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 37cf611b ----------

java.lang.ClassCastException: ajo cannot be cast to ahz

That's usually a sign that you have the wrong version of code somewhere. The wrong version of a mod or something similar