I started out using IDEFix97 to make the A4000D read CDs so I could load up OS 3.9. Everything worked pretty well after that, until I started exchanging various HDs, trying to get a little more storage. Now the beast claims it sort of has a CD drive, but mostly doesn't. I guess I will have to drop back ten and punt... that is to say, take it back to the begining configuration, with the larger HD and start IDEFix again. The IDE port worked just fine when it worked.