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MC has been crashing a lot on me lately. I looked through this latest crash report and saw "ticking screen" and it sounded the most like what I deal with. When I'm playing I only get 40-60 fps with spikes up to 200 and dips down to 5. When I'm running in a straight line, the action will stutter as I run, in a "ticking" sort of way. It's more than when running, but most notable then. With my system I should be running MC smooth as butter. I even reinstalled windows to try a clean install and see if that helped. Not at all.

Specs:

XFX HD 6770 850M 1GB PCI-E on a 6-core 3.3GHz AMD FX 6100 with 16GB RAM, Windows 7 64bit. I have a Dell 22" SR2220L running on HDMI @ 1920x1080, Java 64 bit.

Crash report:

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 9/22/14 8:58 PM
Description: Ticking screen

java.lang.NullPointerException: Ticking screen
at gx.a(SourceFile:334)
at gr.m(SourceFile:178)
at gr.a(SourceFile:184)
at bwb.e(SourceFile:89)
at bsu.r(SourceFile:1488)
at bsu.as(SourceFile:877)
at bsu.a(SourceFile:314)
at net.minecraft.client.main.Main.main(SourceFile:120)


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

-- Head --
Stacktrace:
at gx.a(SourceFile:334)
at gr.m(SourceFile:178)
at gr.a(SourceFile:184)
at bwb.e(SourceFile:89)

-- Affected screen --
Details:
Screen name: bwb
Stacktrace:
at bsu.r(SourceFile:1488)
at bsu.as(SourceFile:877)
at bsu.a(SourceFile:314)
at net.minecraft.client.main.Main.main(SourceFile:120)

-- System Details --
Details:
Minecraft Version: 1.8
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_67, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 214114664 bytes (204 MB) / 358211584 bytes (341 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 1.8
LWJGL: 2.9.1
OpenGL: AMD Radeon HD 6700 Series GL version 4.4.12967 Compatibility Profile Context 14.200.1004.0, ATI Technologies Inc.
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)