That's it! It's so obvious that we all missed it. Thanks for the solution, Carlos.:-wave Steve

The following idea has now officially been nominated for the year 2003 Nobel Price for Flight Simulation.And don't forget DO try this idea at home.thank you carlos>OK guys, I'm not even a RC user, but I think I might know >what the problem is. I also think you already thought this, >but just in case you don't here it is. >>First, restore all your airports in AFCAD but keep a backup >of your overlays so you can re-install them later. >>Second, run the FSNav's DBC so it will re-generate the >database WITHOUT overlays. >>Then re-install the overlays but DO NOT run the FSNav's DBC >again, in that way FSNav will not recognize any overlay in >your system. >>Hope this helps, >>Carlos. >>