I installed forge (latest) and I ran minecraft a few times and this is my ForgeModLoader-client-0.txt:
2012-09-08 12:15:15 [iNFO] [ForgeModLoader] Forge Mod Loader version 3.0.188.360 for Minecraft client:1.3.2, server:1.3.2 loading
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] All core mods are successfully located
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Discovering coremods
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Found library file argo-2.25.jar present and correct in lib dir
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Found library file guava-12.0.1.jar present and correct in lib dir
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Found library file asm-all-4.0.jar present and correct in lib dir
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Running coremod plugins
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Running coremod plugin FMLCorePlugin
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Coremod plugin FMLCorePlugin run successfully
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Running coremod plugin FMLForgePlugin
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Coremod plugin FMLForgePlugin run successfully
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Validating minecraft
2012-09-08 12:15:15 [FINEST] [ForgeModLoader] Minecraft validated, launching...
2012-09-08 12:15:16 [iNFO] [sTDOUT] 27 achievements
2012-09-08 12:15:16 [iNFO] [sTDOUT] 195 recipes
2012-09-08 12:15:16 [iNFO] [sTDOUT] LWJGL Version: 2.4.2
2012-09-08 12:15:17 [iNFO] [sTDERR] org.lwjgl.LWJGLException: Pixel format not accelerated
2012-09-08 12:15:17 [iNFO] [sTDERR] at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
2012-09-08 12:15:17 [iNFO] [sTDERR] at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
2012-09-08 12:15:17 [iNFO] [sTDERR] at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:185)
2012-09-08 12:15:17 [iNFO] [sTDERR] at org.lwjgl.opengl.Display.createWindow(Display.java:311)
2012-09-08 12:15:17 [iNFO] [sTDERR] at org.lwjgl.opengl.Display.create(Display.java:856)
2012-09-08 12:15:17 [iNFO] [sTDERR] at org.lwjgl.opengl.Display.create(Display.java:784)
2012-09-08 12:15:17 [iNFO] [sTDERR] at net.minecraft.client.Minecraft.a(Minecraft.java:378)
2012-09-08 12:15:17 [iNFO] [sTDERR] at net.minecraft.client.Minecraft.run(Minecraft.java:737)
2012-09-08 12:15:17 [iNFO] [sTDERR] at java.lang.Thread.run(Unknown Source)
2012-09-08 12:15:18 [iNFO] [sTDERR] org.lwjgl.LWJGLException: Pixel format not accelerated
2012-09-08 12:15:18 [iNFO] [sTDERR] at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
2012-09-08 12:15:18 [iNFO] [sTDERR] at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
2012-09-08 12:15:18 [iNFO] [sTDERR] at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:185)
2012-09-08 12:15:18 [iNFO] [sTDERR] at org.lwjgl.opengl.Display.createWindow(Display.java:311)
2012-09-08 12:15:18 [iNFO] [sTDERR] at org.lwjgl.opengl.Display.create(Display.java:856)
2012-09-08 12:15:18 [iNFO] [sTDERR] at org.lwjgl.opengl.Display.create(Display.java:784)
2012-09-08 12:15:18 [iNFO] [sTDERR] at org.lwjgl.opengl.Display.create(Display.java:765)
2012-09-08 12:15:18 [iNFO] [sTDERR] at net.minecraft.client.Minecraft.a(Minecraft.java:393)
2012-09-08 12:15:18 [iNFO] [sTDERR] at net.minecraft.client.Minecraft.run(Minecraft.java:737)
2012-09-08 12:15:18 [iNFO] [sTDERR] at java.lang.Thread.run(Unknown Source)
HELP?
Edit: I use Minecraft 1.3.2 and forge version 4.000(or whatever).249