Pichcatimate

Ciao ragazzi quando minecraft finisce il caricamento la schermata rimane nera per circa 5 secondi e poi mi appare questo errore Cosa devo fare vi prego aiutatemi!!!! 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 10/02/12 15.18 Minecraft: Minecraft 1.1 OS: Windows 7 (amd64) version 6.1 Java: 1.6.0_30, Sun Microsystems Inc. VM: Java HotSpot™ 64-Bit Server 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:230) at net.minecraft.client.Minecraft.run(SourceFile:648) at java.lang.Thread.run(Unknown Source) --- END ERROR REPORT 994b6865 ----------