I have the same issue. I'm trying to get one to work in a Cordata CS40 (XT - compatible) with no luck. The bios shows up and I can select my boot preference but never recognizes the CF card. Even purchased a card from a guy that makes these and ensures them working. Can't find much info on this computer but looks similar to the Leading Edge model M I think. I tried the card in all four slots. I have to use this solution as the HD is on it's way out. What do you mean by "changed the IDE cable to center connector", changing slots? I too have the XT-IDE from lotech and the adapter from texelect which works with the lotech card.