Hi, Have tried flying from fs9 itself rather than from ACE. Also was it a free flight or did you create a flight plan? As if you created a flight plan that is failing then you could delete it. It is normaly in my documents flight simulator. You dont have to re-install C-130 though you could always remove the ACE and instal it again. Also try isolating background programes that may interfere like anti-virus or firewell (only if offline though). Hope this will help some. :-/ :-/ :-/