help me when i try to launch tekkit classic it opens a new window under technic but the it goes grey and stays like that i have loaded it again with the console and i got this
Oct 28, 2013 9:54:13 PM uu <init>
SEVERE: A critical error has occurred.
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 net.minecraft.client.Minecraft.a(Minecraft.java:375)
at net.minecraft.client.Minecraft.run(Minecraft.java:738)
at java.lang.Thread.run(Unknown Source)
Exception in thread "Minecraft main thread" java.lang.RuntimeException: sidedDelegate null when attempting to getMinecraftLogger, this is generally caused by you not installing FML properly, or installing some other mod that edits Minecraft.class on top of FML such as ModLoader, do not do this. Reinstall FML properly and try again.
at cpw.mods.fml.common.FMLCommonHandler.getMinecraftLogger(FMLCommonHandler.java:358)
at cpw.mods.fml.common.Loader.<init>(Loader.java:138)
at cpw.mods.fml.common.Loader.instance(Loader.java:129)
at uu.<init>(PanelCrashReport.java:25)
at n.a(SourceFile:38)
at net.minecraft.client.Minecraft.b(Minecraft.java:300)
at net.minecraft.client.Minecraft.run(Minecraft.java:743)
at java.lang.Thread.run(Unknown Source)
please help im deprived of tekkit