I researched and found that the 2300c can only run OS 9.1 or lower. That may be your problem. Here is the website I found the information at: http://www.danpalka.net/powerbookduo/profiles/duo2300c.html Art in Silicon Valley "Sis, Joseph C Jr 1LT NG NG NGB" <joseph.sis at us.army.mil> wrote: I am having trouble upgrading the hard drive in my 2300c duo. I pulled the working IDE drive from my PB2400c (1.3g w/ OS 9.2.2 installed via OS9 Helper) and installed it in the duo. However the duo just comes up with the blinking disk on startup. I tried using Disk Tools via floppy. Interestingly enough I got the message to either eject or initialize the "48.6 mb" drive. I had this message come up at least 50 times in a row until I was finally able to somehow escape into the finder. Disk Tools does not see the internal drive at all. Disk First Aid sees a "Ram" disk but is unable to do anything with the disk - such as repair or verify. Any suggestions? Thanks! _______________________________________________ DuoList mailing list DuoList at listserver.themacintoshguy.com http://listserver.themacintoshguy.com/mailman/listinfo/duolist -------------- next part -------------- An HTML attachment was scrubbed... URL: http://listserver.themacintoshguy.com/pipermail/duolist/attachments/20080124/92debafa/attachment-0001.html