CTD at certain airports

[martinlest2 58]

Hi. I wonder if anyone can explain what may be happening here. It's a problem I've had for a long time.When I open a flight at certain airports (thankfully few) through the 'Choose a Flight' main screen (FS9.1 - posting here as FSX/CTD seems the most relevant forum) I always get a CTD (XP 'blue screen of death', that is) as the flight loads. An example is at Paro, VQPR (paro.zip from AVSIM).If however I load the flight by starting at some other airport and then moving to the problem location (VQPR for instance) via the World/'Go to Airport ...' option in the menu bar, things are fine. Things are also always fine if I go the stricken airport via a saved .flt file.Anyone had the same thing, or think they know what could be happening?Thanks,Martin

[martinlest2 58]

I should add that I am pretty sure this is not a hardware problem: removing a rogue bgl (found by trial and error more often than not) from the airport folder file always stops the CTDs from happening. What I don't understand is why I only get the CTD when I load the airport through the main FS 'Choose a flight' window ...