I was listening to itunes when the computer started to jump and the music started to jump as well, then i shut off the computer to try and start it up again and the mac music comes on, but no picture or anything to boot up....what is wrong with my quickqilver, can you please help me?

Computers & Internet - Quicksilver - ATI Rage 128 Pro 16MB Video Card w/ VGA/DVI (AGP) (p/n...