How to Fix Your Minecraft crash report

Hi, when I click play on the Minecraft Launcher, the launcher disappears for a second and then returns saying it has crashed and would I like to report it to Mojang. I Must have tried it about 20 times now and I get the same error every time! #039; Initializing Game#039; Here#039; s what it says: - - - - Minecraft Crash Report - - - - // Shall we play a game? Time: 21/09/13 10:07 Description: Initializing game org. lwjgl. LWJGLException: Pixel format not accelerated at org. lwjgl. opengl. WindowsPeerInfo. nChoosePi