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So I open minecraft and go into a world, then once i press a button e.g 'E' the game will crash!

PLEASE HELP!


Crash Report:




---- Minecraft Crash Report ----
// Sorry

Time: 1/25/13 6:38 PM
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 asr.b(SourceFile:32)
at net.minecraft.client.Minecraft.i(SourceFile:918)
at net.minecraft.client.Minecraft.a(SourceFile:452)
at net.minecraft.client.Minecraft.l(SourceFile:1273)
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 asr.b(SourceFile:32)
at net.minecraft.client.Minecraft.i(SourceFile:918)
at net.minecraft.client.Minecraft.a(SourceFile:452)

-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [ays['Muffy71'/10, l='MpServer', x=66.05, y=106.49, z=-161.21]]
Chunk stats: MultiplayerChunkCache: 441
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (3,4,-60), Chunk: (at 3,0,4 in 0,-4; contains blocks 0,0,-64 to 15,255,-49), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Level time: 1568810 game time, 481 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: 1 total; [ays['Muffy71'/10, l='MpServer', x=66.05, y=106.49, z=-161.21]]
Retry entities: 0 total; []
Stacktrace:
at ayp.a(SourceFile:281)
at net.minecraft.client.Minecraft.b(SourceFile:1871)
at net.minecraft.client.Minecraft.run(SourceFile:548)
at java.lang.Thread.run(Thread.java:680)

-- System Details --
Details:
Minecraft Version: 1.4.7
Operating System: Mac OS X (x86_64) version 10.6.8
Java Version: 1.6.0_37, Apple Inc.
Java VM Version: Java HotSpot™ 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 196420200 bytes (187 MB) / 532545536 bytes (507 MB) up to 532545536 bytes (507 MB)
JVM Flags: 2 total; -Xms512m -Xmx512m
AABB Pool Size: 240 (13440 bytes; 0 MB) allocated, 2 (112 bytes; 0 MB) used
Suspicious classes: IWrUpdater, Config, WrUpdaterThreaded, ...]
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
LWJGL: 2.4.2
OpenGL: NVIDIA GeForce 320M OpenGL Engine GL version 2.1 NVIDIA-1.6.36, NVIDIA Corporation
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: [1.4.5] R3D CRAFT 128x128 (65%).zip
Profiler Position: N/A (disabled)
Vec3 Pool Size: 199 (11144 bytes; 0 MB) allocated, 14 (784 bytes; 0 MB) used

Read the Mac Faq about Dual Monitors. Section D.2.

Quote from gerbil

Read the Mac Faq about Dual Monitors. Section D.2.

Quote from NobodyCare

Try updating lwjgl.

Thank you both for your help! Both of your suggestions helped dramatically. I appreciate it.