Servus, 
unzwar habe ich meine PC neuaufgesetzt, und jetzt kommt immer wenn es starten will, folgender ERROR... ich bekomme ihn einfach nicht weg. Grafikkarte ist auf dem neusten Stand. 
Ich hoffe einer kennt sich damit auch, oder hat das Problem auch, und kann mir vielleicht die Lösung verrate.
.Minecraft mehrmals gelöscht. 
Code
		
					
			---- Minecraft Crash Report ----
// Why did you do that?
Time: 22.05.14 17:04
Description: Initializing game
org.lwjgl.LWJGLException: Pixel format not accelerated
 at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
 at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
 at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:252)
 at org.lwjgl.opengl.Display.createWindow(Display.java:306)
 at org.lwjgl.opengl.Display.create(Display.java:848)
 at org.lwjgl.opengl.Display.create(Display.java:757)
 at org.lwjgl.opengl.Display.create(Display.java:739)
 at ban.ag(SourceFile:340)
 at ban.f(SourceFile:713)
 at net.minecraft.client.main.Main.main(SourceFile:148)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Stacktrace:
 at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
 at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
 at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:252)
 at org.lwjgl.opengl.Display.createWindow(Display.java:306)
 at org.lwjgl.opengl.Display.create(Display.java:848)
 at org.lwjgl.opengl.Display.create(Display.java:757)
 at org.lwjgl.opengl.Display.create(Display.java:739)
 at ban.ag(SourceFile:340)
-- Initialization --
Details:
Stacktrace:
 at ban.f(SourceFile:713)
 at net.minecraft.client.main.Main.main(SourceFile:148)
-- System Details --
Details:
 Minecraft Version: 1.7.9
 Operating System: Windows 8.1 (amd64) version 6.3
 Java Version: 1.8.0_05, Oracle Corporation
 Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
 Memory: 33399832 bytes (31 MB) / 56098816 bytes (53 MB) up to 954728448 bytes (910 MB)
 JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
 AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
 IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
 Launched Version: 1.7.9
 LWJGL: 2.9.1
 OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
 GL Caps: 
 Is Modded: Probably not. Jar signature remains and client brand is untouched.
 Type: Client (map_client.txt)
 Resource Packs: []
 Current Language: ~~ERROR~~ NullPointerException: null
 Profiler Position: N/A (disabled)
 Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
 Anisotropic Filtering: Off (1)
	
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