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 11.07.12 10:13

Minecraft: Minecraft Beta 1.7.2
OS: Windows 7 (x86) version 6.1
Java: 1.7.0_05, Oracle Corporation
VM: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
LWJGL: 2.4.2
OpenGL: null version null, null

java.lang.IllegalStateException: glGetString(GL_VERSION) returned null - possibly caused by missing current context.
at org.lwjgl.opengl.GLContext.getSupportedExtensions(GLContext.java:187)
at org.lwjgl.opengl.ContextCapabilities.initAllStubs(ContextCapabilities.java:4355)
at org.lwjgl.opengl.ContextCapabilities.‹init›(ContextCapabilities.java:4661)
at org.lwjgl.opengl.GLContext.useContext(GLContext.java:352)
at org.lwjgl.opengl.Context.makeCurrent(Context.java:183)
at org.lwjgl.opengl.Display.makeCurrent(Display.java:730)
at org.lwjgl.opengl.Display.makeCurrentAndSetSwapInterval(Display.java:896)
at org.lwjgl.opengl.Display.create(Display.java:860)
at org.lwjgl.opengl.Display.create(Display.java:784)
at net.minecraft.client.Minecraft.J(Unknown Source)
at net.minecraft.client.Minecraft.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT a9fbcffe ----------

"C:\Program Files (x86)\Java\jre7\bin\java.exe" -Xms564M -Xmx564M -jar Minecraft.jar
Error: Unable to access jarfile Minecraft.jar