Minecraft ne ce lance pas

Voila j'ai reformater mon pc, j'ai installer minecraft puis un probleme est survenu j'ai déja essayé de reinstaller minecraft/java. [12:09:45] [Client thread/INFO]: Setting user: wikiz
[12:09:45] [Client thread/INFO]: (Session ID is token: :f3c9e9e36a643aa1b67a25db87b92ab2)
[12:09:49] [Client thread/INFO]: LWJGL Version: 2.9.1
[12:09:49] [Client thread/ERROR]: Couldn't set pixel format
org.lwjgl.LWJGLException: Pixel format not accelerated
at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method) ~[lwjgl-2.9.1.jar:?]
at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52) ~[lwjgl-2.9.1.jar:?]
at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:252) ~[lwjgl-2.9.1.jar:?]
at org.lwjgl.opengl.Display.createWindow(Display.java:306) ~[lwjgl-2.9.1.jar:?]
at org.lwjgl.opengl.Display.create(Display.java:848) ~[lwjgl-2.9.1.jar:?]
at org.lwjgl.opengl.Display.create(Display.java:757) ~[lwjgl-2.9.1.jar:?]
at bss.an(SourceFile:513) [1.8.1.jar:?]
at bss.ak(SourceFile:355) [1.8.1.jar:?]
at bss.a(SourceFile:302) [1.8.1.jar:?]
at net.minecraft.client.main.Main.main(SourceFile:124) [1.8.1.jar:?]
---- Minecraft Crash Report ----
// Why is it breaking :(

Time: 15/05/15 12:09
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 bss.an(SourceFile:526)
at bss.ak(SourceFile:355)
at bss.a(SourceFile:302)
at net.minecraft.client.main.Main.main(SourceFile:124)


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 bss.an(SourceFile:526)
at bss.ak(SourceFile:355)

-- Initialization --
Details:
Stacktrace:
at bss.a(SourceFile:302)
at net.minecraft.client.main.Main.main(SourceFile:124)

-- System Details --
Details:
Minecraft Version: 1.8.1
Operating System: Windows Vista (x86) version 6.0
Java Version: 1.8.0_45, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 2049816 bytes (1 MB) / 149692416 bytes (142 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.8.1
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)
#@!@# Game crashed! Crash report saved to: #@!@# C:\Users\Hugo\AppData\Roaming\.minecraft\crash-reports\crash-2015-05-15_12.09.51-client.txt
[12:09:51] [Client Shutdown Thread/INFO]: Stopping server
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
AIDER MOI SVP :'(