Erreur minecraft

Bonjour,

j' ai beaucoup entendu parler de minecraft et je l' ai même essayé, mais il y a deux jours, je l' ai téléchargé, lancé et il m' a affiché :


Bad video card drivers!
-----------------------

Minecraft was unable to start because it failed to find an accelerated OpenGL mode.
This can usually be fixed by updating the video card drivers.



--- BEGIN ERROR REPORT 7fe0271 --------
Generated 06/03/11 19:48

Minecraft: Minecraft Beta 1.3_01
OS: Windows 7 (x86) version 6.1
Java: 1.6.0_23, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
[failed to get system properties (java.lang.NullPointerException)]

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:185)
at org.lwjgl.opengl.Display.createWindow(Display.java:311)
at org.lwjgl.opengl.Display.create(Display.java:856)
at org.lwjgl.opengl.Display.create(Display.java:784)
at org.lwjgl.opengl.Display.create(Display.java:765)
at net.minecraft.client.Minecraft.a(SourceFile:260)
at net.minecraft.client.Minecraft.run(SourceFile:632)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT f6ab54eb ----------

merci pour vos réponses lzs plus rapides.