เข้าเซิฟMinecraftไม่ได้ ขึ้นCrash Report แก้ไขยังไงครับ?

---- Minecraft Crash Report ----
// I'm sorry, Dave.

Time: 8/11/2557, 17:18 น.
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 bsu.am(SourceFile:523)
    at bsu.aj(SourceFile:352)
    at bsu.a(SourceFile:299)
    at net.minecraft.client.main.Main.main(SourceFile:120)


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 bsu.am(SourceFile:523)
    at bsu.aj(SourceFile:352)

-- Initialization --
Details:
Stacktrace:
    at bsu.a(SourceFile:299)
    at net.minecraft.client.main.Main.main(SourceFile:120)

-- System Details --
Details:
    Minecraft Version: 1.8
    Operating System: Windows 7 (x86) version 6.1
    Java Version: 1.8.0_25, Oracle Corporation
    Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
    Memory: 42073032 bytes (40 MB) / 97792000 bytes (93 MB) up to 518979584 bytes (494 MB)
    JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    Launched Version: 1.8
    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)


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