Ça pardon :
Minecraft has crashed!
----------------------
Minecraft has stopped running because it encountered a problem.
If you wish to report this, please copy this entire text and email it to support@mojang.com.
Please include a description of what you did when the error occured.
--- BEGIN ERROR REPORT a1dce528 --------
Generated 01/07/11 17:29
Minecraft: Minecraft Beta 1.7.2
OS: Linux (i386) version 2.6.38-8-generic
Java: 1.6.0_22, Sun Microsystems Inc.
VM: OpenJDK Client VM (mixed mode, sharing), Sun Microsystems Inc.
LWJGL: 2.4.2
[failed to get system properties (java.lang.NullPointerException)]
java.lang.IllegalStateException: Only one LWJGL context may be instantiated at any one time.
at
org.lwjgl.opengl.Display.create(Display.java:846)
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:294)
at
net.minecraft.client.Minecraft.run(SourceFile:716)
at java.lang.Thread.run(Thread.java:679)
--- END ERROR REPORT 13206086 ----------