cho mình hỏi cái ...

mọi người ơi mình vào game thì nó hiện lỗi này


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

Minecraft has stopped running because it encountered a problem.




--- BEGIN ERROR REPORT 7cf3a456 --------
Generated 5/21/12 3:42 PM

Minecraft: Minecraft 1.2.5
OS: Windows XP (x86) version 5.1
Java: 1.6.0_31, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
[failed to get system properties (java.lang.NullPointerException)]

org.lwjgl.LWJGLException: Could not create context
at org.lwjgl.opengl.WindowsContextImplementation.nCre ate(Native Method)
at org.lwjgl.opengl.WindowsContextImplementation.crea te(WindowsContextImplementation.java:50)
at org.lwjgl.opengl.Context.<init>(Context.java:120)
at org.lwjgl.opengl.Display.create(Display.java:858)
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:236)
at net.minecraft.client.Minecraft.run(SourceFile:657)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT dee0fe18 ----------
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