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Minecraft keeps crashing whenever I try to go into the nether, open my inventory or try to get into the menu screen, it comes up with this crash report everytime, even though I updated Java. I'm not sure if I have more than one java installed... either way I'm pretty lost... I don't know a lot about programming... so please help

My computer is a Mac Os x 10.6.8 and I did update my java

---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 11/24/12 12:34 AM
Description: Unexpected error

java.lang.NullPointerException
at org.lwjgl.opengl.AWTUtil.getPointerLocation(AWTUtil.java:120)
at org.lwjgl.opengl.AWTUtil.getCursorPosition(AWTUtil.java:138)
at org.lwjgl.opengl.MouseEventQueue.resetCursorToCenter(MouseEventQueue.java:115)
at org.lwjgl.opengl.MacOSXMouseEventQueue.resetCursorToCenter(MacOSXMouseEventQueue.java:71)
at org.lwjgl.opengl.MouseEventQueue.setGrabbed(MouseEventQueue.java:101)
at org.lwjgl.opengl.MacOSXMouseEventQueue.setGrabbed(MacOSXMouseEventQueue.java:57)
at org.lwjgl.opengl.MacOSXDisplay.grabMouse(MacOSXDisplay.java:347)
at org.lwjgl.input.Mouse.setGrabbed(Mouse.java:636)
at asj.b(SourceFile:26)
at net.minecraft.client.Minecraft.i(SourceFile:917)
at net.minecraft.client.Minecraft.a(SourceFile:452)
at net.minecraft.client.Minecraft.l(SourceFile:1272)
at net.minecraft.client.Minecraft.J(SourceFile:582)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.Thread.run(Thread.java:680)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at org.lwjgl.opengl.AWTUtil.getPointerLocation(AWTUtil.java:120)
at org.lwjgl.opengl.AWTUtil.getCursorPosition(AWTUtil.java:138)
at org.lwjgl.opengl.MouseEventQueue.resetCursorToCenter(MouseEventQueue.java:115)
at org.lwjgl.opengl.MacOSXMouseEventQueue.resetCursorToCenter(MacOSXMouseEventQueue.java:71)
at org.lwjgl.opengl.MouseEventQueue.setGrabbed(MouseEventQueue.java:101)
at org.lwjgl.opengl.MacOSXMouseEventQueue.setGrabbed(MacOSXMouseEventQueue.java:57)
at org.lwjgl.opengl.MacOSXDisplay.grabMouse(MacOSXDisplay.java:347)
at org.lwjgl.input.Mouse.setGrabbed(Mouse.java:636)
at asj.b(SourceFile:26)
at net.minecraft.client.Minecraft.i(SourceFile:917)
at net.minecraft.client.Minecraft.a(SourceFile:452)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [ayk['Ivoryfox'/134, l='MpServer', x=110.24, y=74.62, z=24.44]]
Chunk stats: MultiplayerChunkCache: 225
Level seed: 0
Level generator: ID 00 - default, ver 1. Features enabled: false
Level generator options:
Level spawn location: World: (434,64,340), Chunk: (at 2,4,4 in 27,21; contains blocks 432,0,336 to 447,255,351), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 3245792 game time, 3251372 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 65 total; [ayk['Ivoryfox'/134, l='MpServer', x=110.24, y=74.62, z=24.44], qk['Zombie Pigman'/136, l='MpServer', x=97.28, y=52.00, z=27.63], qk['Zombie Pigman'/143, l='MpServer', x=35.75, y=44.00, z=-9.22], qk['Zombie Pigman'/135, l='MpServer', x=101.66, y=52.00, z=26.24], qk['Zombie Pigman'/152, l='MpServer', x=77.37, y=37.89, z=40.64], qk['Zombie Pigman'/154, l='MpServer', x=90.00, y=13.00, z=-42.69], qk['Zombie Pigman'/155, l='MpServer', x=93.52, y=51.00, z=-43.30], qk['Zombie Pigman'/156, l='MpServer', x=89.28, y=50.00, z=-46.75], qk['Zombie Pigman'/157, l='MpServer', x=93.13, y=49.00, z=-47.81], qk['Zombie Pigman'/158, l='MpServer', x=81.63, y=44.00, z=11.50], rd['entity.Fireball.name'/159, l='MpServer', x=90.44, y=60.41, z=1.81], qk['Zombie Pigman'/144, l='MpServer', x=46.50, y=82.00, z=23.03], qk['Zombie Pigman'/146, l='MpServer', x=76.50, y=45.00, z=12.50], qk['Zombie Pigman'/147, l='MpServer', x=80.48, y=43.00, z=5.89], qk['Zombie Pigman'/148, l='MpServer', x=78.50, y=50.00, z=21.50], qk['Zombie Pigman'/149, l='MpServer', x=80.34, y=50.00, z=22.62], qk['Zombie Pigman'/150, l='MpServer', x=77.63, y=50.00, z=29.59], qk['Zombie Pigman'/151, l='MpServer', x=76.38, y=50.00, z=24.34], qk['Zombie Pigman'/171, l='MpServer', x=108.22, y=56.00, z=39.13], qk['Zombie Pigman'/170, l='MpServer', x=97.21, y=58.00, z=43.63], qk['Zombie Pigman'/169, l='MpServer', x=105.72, y=51.00, z=6.44], qk['Zombie Pigman'/168, l='MpServer', x=102.99, y=50.00, z=6.34], px['item.item.ghastTear'/175, l='MpServer', x=120.22, y=59.13, z=4.69], qk['Zombie Pigman'/174, l='MpServer', x=123.41, y=27.00, z=-12.31], qk['Zombie Pigman'/172, l='MpServer', x=109.53, y=34.00, z=95.75], qk['Zombie Pigman'/163, l='MpServer', x=107.37, y=44.93, z=-44.41], qk['Zombie Pigman'/161, l='MpServer', x=94.39, y=59.00, z=62.55], qk['Zombie Pigman'/160, l='MpServer', x=80.50, y=39.00, z=38.66], rd['entity.Fireball.name'/167, l='MpServer', x=100.31, y=52.00, z=12.03], qk['Zombie Pigman'/166, l='MpServer', x=105.69, y=46.00, z=11.94], qk['Zombie Pigman'/165, l='MpServer', x=98.39, y=51.00, z=-0.31], qk['Zombie Pigman'/164, l='MpServer', x=99.25, y=52.00, z=-33.00], qk['Zombie Pigman'/186, l='MpServer', x=117.54, y=55.00, z=39.55], qk['Zombie Pigman'/187, l='MpServer', x=119.45, y=65.59, z=45.71], qk['Zombie Pigman'/184, l='MpServer', x=124.72, y=92.00, z=26.69], qk['Zombie Pigman'/185, l='MpServer', x=113.91, y=56.00, z=39.55], qk['Zombie Pigman'/190, l='MpServer', x=137.66, y=29.81, z=5.67], qk['Zombie Pigman'/191, l='MpServer', x=139.05, y=29.00, z=2.60], qk['Zombie Pigman'/188, l='MpServer', x=118.84, y=66.00, z=43.63], qk['Zombie Pigman'/189, l='MpServer', x=128.92, y=27.00, z=-11.36], qk['Zombie Pigman'/178, l='MpServer', x=123.23, y=76.00, z=5.40], qk['Zombie Pigman'/179, l='MpServer', x=117.72, y=93.00, z=13.31], qk['Zombie Pigman'/176, l='MpServer', x=122.00, y=75.00, z=8.69], qk['Zombie Pigman'/177, l='MpServer', x=119.97, y=76.00, z=8.22], qk['Zombie Pigman'/182, l='MpServer', x=121.29, y=92.00, z=20.65], qk['Zombie Pigman'/183, l='MpServer', x=129.39, y=91.69, z=20.80], qk['Zombie Pigman'/180, l='MpServer', x=114.91, y=46.00, z=16.56], qk['Zombie Pigman'/181, l='MpServer', x=123.28, y=60.00, z=19.94], qk['Zombie Pigman'/205, l='MpServer', x=171.17, y=46.00, z=55.43], qk['Zombie Pigman'/204, l='MpServer', x=172.67, y=91.78, z=17.43], qk['Zombie Pigman'/207, l='MpServer', x=171.50, y=114.00, z=90.88], qk['Zombie Pigman'/206, l='MpServer', x=171.47, y=114.00, z=91.88], qk['Zombie Pigman'/201, l='MpServer', x=147.63, y=53.00, z=38.34], qk['Zombie Pigman'/200, l='MpServer', x=153.16, y=92.00, z=15.91], qk['Zombie Pigman'/202, l='MpServer', x=147.92, y=54.00, z=35.81], qk['Zombie Pigman'/197, l='MpServer', x=129.06, y=53.18, z=34.33], qk['Zombie Pigman'/196, l='MpServer', x=132.53, y=55.33, z=44.41], qk['Zombie Pigman'/199, l='MpServer', x=133.03, y=52.00, z=94.59], qk['Zombie Pigman'/198, l='MpServer', x=130.69, y=55.00, z=32.06], qk['Zombie Pigman'/193, l='MpServer', x=133.22, y=60.00, z=4.91], qk['Zombie Pigman'/192, l='MpServer', x=130.50, y=29.00, z=3.50], qk['Zombie Pigman'/195, l='MpServer', x=129.41, y=54.81, z=31.23], qk['Zombie Pigman'/194, l='MpServer', x=130.88, y=92.00, z=15.09], qk['Zombie Pigman'/210, l='MpServer', x=189.41, y=76.00, z=45.69], px['item.item.ghastTear'/175, l='MpServer', x=120.22, y=59.13, z=4.69]]
Retry entities: 0 total; []
Stacktrace:
at ayh.a(SourceFile:290)
at net.minecraft.client.Minecraft.b(SourceFile:1870)
at net.minecraft.client.Minecraft.run(SourceFile:548)
at java.lang.Thread.run(Thread.java:680)

-- System Details --
Details:
Minecraft Version: 1.4.5
Operating System: Mac OS X (i386) version 10.6.8
Java Version: 1.6.0_37, Apple Inc.
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Apple Inc.
Memory: 427630456 bytes (407 MB) / 587005952 bytes (559 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 3 total; -Xbootclasspath/a:/System/Library/PrivateFrameworks/JavaApplicationLauncher.framework/Resources/LauncherSupport.jar -Xms512M -Xmx1024M
AABB Pool Size: 7955 (445480 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
LWJGL: 2.4.2
OpenGL: ATI Radeon HD 6750M OpenGL Engine GL version 2.1 ATI-1.6.36, ATI Technologies Inc.
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: 1056 (59136 bytes; 0 MB) allocated, 14 (784 bytes; 0 MB) used

I figured my own problem out! just ignore!

how what did you do?
i have that problem now

Quote from tysonkoolbreeze

how what did you do?
i have that problem now

You have an error report you can post?

If I had to guess on the OP's report he may have solved the issue by updating lwjgl.