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Hey my minecraft is crashing when ever i attempt to boot the game giving me this error:



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

Minecraft has stopped running because it encountered a problem; Failed to start game

A full error report has been saved to /Users/andrewpocius/Library/Application Support/minecraft/crash-reports/crash-2012-12-05_18.31.09-client.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash



--- BEGIN ERROR REPORT ca04df23 --------
Full report at:
/Users/andrewpocius/Library/Application Support/minecraft/crash-reports/crash-2012-12-05_18.31.09-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 12/5/12 6:31 PM

-- System Details --
Details:
Minecraft Version: 1.4.5
Operating System: Mac OS X (x86_64) version 10.8.2
Java Version: 1.6.0_37, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 499864328 bytes (476 MB) / 534708224 bytes (509 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: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
LWJGL: 2.4.2
OpenGL: ~~ERROR~~ NullPointerException: null
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Texture Pack: ~~ERROR~~ NullPointerException: null
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null[failed to get system properties (java.lang.NullPointerException)]


org.lwjgl.LWJGLException: Could not create pixel format
at org.lwjgl.opengl.MacOSXPeerInfo.nChoosePixelFormat(Native Method)
at org.lwjgl.opengl.MacOSXPeerInfo.choosePixelFormat(MacOSXPeerInfo.java:55)
at org.lwjgl.opengl.MacOSXPeerInfo.<init>(MacOSXPeerInfo.java:50)
at org.lwjgl.opengl.MacOSXCanvasPeerInfo.<init>(MacOSXCanvasPeerInfo.java:49)
at org.lwjgl.opengl.MacOSXDisplayPeerInfo.<init>(MacOSXDisplayPeerInfo.java:48)
at org.lwjgl.opengl.MacOSXDisplay.createPeerInfo(MacOSXDisplay.java:246)
at org.lwjgl.opengl.Display.create(Display.java:854)
at org.lwjgl.opengl.Display.create(Display.java:784)
at org.lwjgl.opengl.Display.create(Display.java:765)
at net.minecraft.client.Minecraft.a(SourceFile:232)
at net.minecraft.client.Minecraft.run(SourceFile:515)
at java.lang.Thread.run(Thread.java:680)
--- END ERROR REPORT 116372a2 ----------



If anyone has any idea what this mean please help.
If you wish I ca post the more detailed .txt file created by the crash as well.