My desktop G4 1Ghz DP 512MB RAM has a superdrive which started being funny in an unfunny kind of way. First the eject key on the keyboard wouldn't eject disks. Then when I couldn't open it to put disks in, Apple System Profiler didn't reckon it was there. I ran Silverlining Pro which said that there was a drive there but no driver...I downloaded the superdrive update from Apple's website but got the message that "this computer does not need this". Now System Profiler recognizes it, and Silverlining Pro recognizes it as: Bus 0: Internal ATA Bus CD ROM 0: Empty - Pioneer DVD-RW DVR-104 Version: 0000 Name of installed driver: .ATADisk (v6.1) reference number of driver: -69 Sorry if this is too much info, but people always need info to help, don't they?! I have just noticed that the main hard drive is on internal ATA 2 and is ID 0, and the DVD-R is on Internal ATA 0 and is also ID 0. Shouldn't devices have different ID numbers? Is this the problem? If so can someone please advise me how to sort it out? Toast Titanium also doesn't find the superdrive when it scans. I also have an Adaptec SCSI card which has a small Lacie external HDD and a generic CDRW drive on it. These have been there for ages and never any problems before. There is a USB hub with usual peripherals and a MOTU 828 audio interface via firewire. Thanks!