same thing i ctd everytime i try to load the j41 pdmg. I once had this working i have it working on a seperate machine. PDMG needs to do something about this it's very frustrating and the 747 and md-11 work fine. It's only this product that seems to have this issue. Yes I probably could reinstall windows and and wipe everything, but really should i have to- to get one small addon to work. I hope they can find a patch because i'm not going to buy another PDMG product until they fix this bug.