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I was going from 1.3.2 to 1.4.2 and all of the sudden my minecraft just stopped working...
can anyone tell me why exactly...

--- BEGIN ERROR REPORT 6e4c8f7b --------
Generated 11/5/12 4:02 PM

- Minecraft Version: 1.4.2
- Operating System: Linux (amd64) version 3.2.0-32-generic
- Java Version: 1.7.0_06, Oracle Corporation
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
- Memory: 24820272 bytes (23 MB) / 55836672 bytes (53 MB) up to 829554688 bytes (791 MB)
- JVM Flags: 0 total;
- AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
- LWJGL: 2.4.2
- OpenGL: ~ERROR~ NullPointerException: null
- Is Modded: Probably not
- Type: Client
- 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: X Error - disp: 0x7f5bd84a7880 serial: 36 error: BadRequest (invalid request code or no such operation) request_code: 156 minor_code: 14
at org.lwjgl.opengl.LinuxDisplay.globalErrorHandler(LinuxDisplay.java:268)
at org.lwjgl.opengl.LinuxDisplayPeerInfo.initDefaultPeerInfo(Native Method)
at org.lwjgl.opengl.LinuxDisplayPeerInfo.<init>(LinuxDisplayPeerInfo.java:52)
at org.lwjgl.opengl.LinuxDisplay.createPeerInfo(LinuxDisplay.java:684)
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:722)
--- END ERROR REPORT bbb1f095 ----------