Miért crashel be a Minecraft, amikor el akarom indítani?

Amikor a launchernél rákattintok a Play gombra egyből becrashel. Eredeti, modolatlan Minecraft. Mi lehet a baja?

---- Minecraft Crash Report ----

// Sorry :(

Time: 2013.10.28. 18:42

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:244)

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 awq.W(SourceFile:365)

at awq.e(SourceFile:689)

at net.minecraft.client.main.Main.main(SourceFile:104)

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:244)

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 awq.W(SourceFile:365)

-- Initialization --

Details:

Stacktrace:

at awq.e(SourceFile:689)

at net.minecraft.client.main.Main.main(SourceFile:104)

-- System Details --

Details:

Minecraft Version: 13w39b

Operating System: Windows Vista (x86) version 6.0

Java Version: 1.7.0_07, Oracle Corporation

Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation

Memory: 4515616 bytes (4 MB) / 26808320 bytes (25 MB) up to 518979584 bytes (494 MB)

JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M

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: 13w39b

LWJGL: 2.9.0

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

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: ~~ERROR~~ NullPointerException: null