OpenGL IS the cause of this.

Graphics Driver:nVidia Geforce 6150SE nForce 430 newly updated
Code :
      Minecraft has crashed!      
      ----------------------      
 
Minecraft has stopped running because it encountered a problem.
 
 
 
 
--- BEGIN ERROR REPORT 7cf3a456 --------
Generated 5/17/12 8:25 PM
 
Minecraft: Minecraft 1.2.5
OS: Windows Vista (x86) version 6.0
Java: 1.6.0_18, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
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.a(SourceFile:204)
	at net.minecraft.client.Minecraft.run(SourceFile:657)
	at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 2a2e62b6 ----------