my computer has been messing up. when i have a cd inside of my dvd rom drive, it has the little busy light on but it doesn't detect the cd. also, the cd won't come out. i'm installing somethign right now, and i'm on the third disc and my computer isn't detecting the disc. i don't know what to do. what i usually do is restart my computer, but then i'll lose the installation progess, and if i restart and start all over i know it'll mess up again. does anyone know how to fix this? this happens with all cds, games, videos, music, everything.