I have a Toshiba DVD-ROM SD-M1401 scsi drive that ejects constantly. I have
updated the drivers for the scsi controller, Adaptec AHA-2940 PCI, but it
still persists. It works fine as long as I have a disc in the drive and am
actively using it, but as soon as its idle, eject. Any Suggestions?

Vista Home Basic
Asus A7N8X-E Deluxe
AMD Athlon XP 2600+ 2.1Ghz
1g Ram DDR
2 WD 40g drives
1 WD 80g drive