Minecraft 1.6.2 miért nem indul?

A minecraft 1.6.2 nem indul.. Java fent van, vidi kártya driver fent van.. mégsem indul.. gép infók: cpu: intel pentium 2.6 Ghz, 2,5gb ram, gigabyte 9500 Gt vidikártya..

a minecraft sysserje ezt írja:

--- Minecraft Crash Report ----

// Don't be sad. I'll do better next time, I promise!

Time: 2013.10.07. 17:26

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 atv.O(SourceFile:297)

at atv.d(SourceFile:599)

at net.minecraft.client.main.Main.main(SourceFile:101)

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 atv.O(SourceFile:297)

-- Initialization --

Details:

Stacktrace:

at atv.d(SourceFile:599)

at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --

Details:

Minecraft Version: 1.6.4

Operating System: Windows 7 (x86) version 6.1

Java Version: 1.7.0_40, Oracle Corporation

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

Memory: 5879464 bytes (5 MB) / 26808320 bytes (25 MB) up to 518979584 bytes (494 MB)

JVM Flags: 1 total; -Xmx512M

AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

Suspicious classes: No suspicious classes found.

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

Launched Version: 1.6.4

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 Pack: Default

Current Language: ~~ERROR~~ NullPointerException: null

Profiler Position: N/A (disabled)

Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

Mi lehet a baj?