Miért nem indul a minecraft?

w8-am van már 1 órája próbálkozok mindennel, hogy elinduljon de nem megy!:( w7-en eddig hiba nélkül ment, mostanába meg folyamatosan chrasselget.Légyszíves segítsetek!

---- Minecraft Crash Report ----

// You should try our sister game, Minceraft!

Time: 2014.11.23. 13:03

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 bsu.am(SourceFile:523)

at bsu.aj(SourceFile:352)

at bsu.a(SourceFile:299)

at net.minecraft.client.main.Main.main(SourceFile:120)

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 bsu.am(SourceFile:523)

at bsu.aj(SourceFile:352)

-- Initialization --

Details:

Stacktrace:

at bsu.a(SourceFile:299)

at net.minecraft.client.main.Main.main(SourceFile:120)

-- System Details --

Details:

Minecraft Version: 1.8

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: 47909344 bytes (45 MB) / 123731968 bytes (118 MB) up to 954728448 bytes (910 MB)

JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

Launched Version: 1.8

LWJGL: 2.9.1

OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.

GL Caps:

Using VBOs: No

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)