When i stick a cd in the drive, the computer doesn't recognize the cd. This drive can be taken out and replaced with a zip drive or a floppy drive. i have had this problem before and took it to some guy and he fixed the problem, but he is not working anymore. This problem started when i connection became loose and the screen had no picture. I will admit that i tried to fixed the screen problem on advice of some other guy who said he knew macs. He told me to start up by holding ctrl-open apple-o-p. he also reccomended pushing other buttons, but i do not recall. When i plug in my digital camera, it works fine as well as my printer ipod and etc.... This is a black powerbook. I think it is a g3 or g3 pismo. I have mac os X. any help would be appreciated.