I have an A1200 with both Zip100 and LS120 drives (Plus CD & HD) on a 4 way buffer on the internal IDE port. The first problems I had were instability, which was solved by altering the order of all IDE devices on the buffer (Eyetech help was excellent !), Eyetech then had the original method (using the Zip disk as a bootable hard drive - Very good for emergency start ups off Zip disks), which they superceded with the easily swappable disk method (Must have been a software update). This was again all tied in with IDEfix but I can't remember what they changed ! I use Zip disks with OS3.5 and have no problems at all. I also use CrossDos with the drive so I get two icons for every disk, it can easily read both formats. Keep trying - they will work !
