I had Flight Deck III (FD3) and I thought it was a great add-on to my FS2002 howwever since transitioning to FS9 and FSX I decided to install Flight Deck 4 (FD4). I've had problems loading the Scenery. I kept telling me that it cannot find FS9 and also that it cannot find FSX in Window Registry. Note: My OS (WINxp) is in drive C: while my flight sim games are in drive J: but that should not make any difference, should it? I had been in contact with the mfr of FD4 (Abacus) but have had no joy thus far. Any ideas why this is happening?