I think I might have discovered another incompatibility.
When running the scenery I get this message and the sim freezes
Microsoft Visual C++ Runtime Library
Program.... (folder string) FS9.exe
R6025
-pure virtual function call
The problem is random and can take place 10 minutes into a flight or after an hour or more. It even happened while leaving the aircraft sit on the ramp at TNCM just to see what might happen. The crash is competely unpredictable. I do not have this issue at any other place in the FS9 world. The problem appears to have disappeared after I deleted "FS2004 Scenery--Anguilla Ferry" by Ingo Schwan. The ferry operates as AI traffic. After deleting the scenery I ran the scenery for 5 hours straight without fault with AI traffic running at 100% -- mind you leaving the aircraft on the ramp. It would appear the ferry traffic is not compatible with FlyTampa St. Maarten. Are you familiar with this 2010 add-on?
The internet is full of postings about the infamous R6025 issue and nobody has a remedy and nobody really knows how one gets such an error. Lots of theories but no solutions for tracking down the source of the problem. So, I am not completely sure Mr. Schwan's ferry traffic is the cause but wanted to bring my observations to your attention. If there is actually some sort of conflict then I am sure others will want to know.
Cheers
Greg Putz
Regina, Canada.