Minecraft Crashed!

Dobrý den neporadite ? keď sme mali Win7 minecraft išiel.. no a potom sme preinštalovali notebook na win8 a toto napíše . Dakujem
Bad video card drivers!
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Minecraft was unable to start because it failed to find an accelerated OpenGL mode.
This can usually be fixed by updating the video card drivers.

--- BEGIN ERROR REPORT 7fe0271 --------
Generated 9.2.2013 17:24

-- System Details --
Details:
Minecraft Version: 1.4.7
Operating System: Windows 8 (amd64) version 6.2
Java Version: 1.7.0_09, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1950903568 bytes (1860 MB) / 2058027008 bytes (1962 MB) up to 2058027008 bytes (1962 MB)
JVM Flags: 2 total; -Xms2048m -Xmx2048m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: IWrUpdater, Config]
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
LWJGL: 2.4.2
OpenGL: ~~ERROR~~ NullPointerException: null
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null[failed to get system properties (java.lang.NullPointerException)]

org.lwjgl.LWJGLException: Pixel format not accelerated
at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelForma t(Native Method)
at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat (WindowsPeerInfo.java:52)
at org.lwjgl.opengl.WindowsDisplay.createWindow(Windo wsDisplay.java:185)
at org.lwjgl.opengl.Display.createWindow(Display.java :311)
at org.lwjgl.opengl.Display.create(Display.java:856)
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 asq.a(SourceFile:56)
at net.minecraft.client.Minecraft.run(SourceFile:515)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 493a4d87 ----------