I believe you need an extension in your System Folder > Extensions to recognize the third-party CD-ROM. An old Apple boot ROM CD will work much better. It's been a very long time.... :-( Hold down the "C" key when you start, or the really old combination, "Command-Option-Shift-Delete" to force a boot from a CD. Robert A. Donaldson r.donaldson at comcast.net On Apr 2, 2010, at 5:35 PM, Ward Curry wrote: > Okay...my SCSI dock adapter and SCSI cable arrived and I attempted to boot my PowerBook 2400c from an OS 8.1 CD-ROM and I am still having problems. I have the adapter switched to "SCSI" and a terminator on the other port of the CD-ROM drive. The issue I am having is that it boots to a grey screen and nothing happens. The CD-ROM drive spins up but it doesn't load the OS. The CD-ROM drive is not an Apple-branded drive, it's a Micronet 16x SCSI CD-ROM. Could this be my issue? Do I need an Apple SCSI CD-ROM to boot it? > > Thanks > _______________________________________________ > DuoList mailing list > DuoList at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/duolist