OpenGl...i need help

this is my first time running the emulator and i finally got it to run kirby air ride (Dolphin) then a warning/error message came up saying "Can't run opengl renderer. you might be missing some recuired opengl extensions, check the logs for more info." i need major step by step help, i've got no idea what i'm doing.

Chances are your card does not support openGL to the level Dolphin requires. Try dirrectX instead. Its under video option, last tab I think