a. no other devices on that IDE cable?
b. the jumpers at the back of the CD set to master or slave (whichever is appropriate) and not something stupid like cable select.
c. device detected correctly in windows?
d. UDMA enabled for the IDE buses?
e. write cache enabled for the drive?
f. no odd conflicts (hardware or software)
apart from that im outta ideas...
Is that a Northwoody in your pocket or are you just eXPited to see me?