This is a bit awkward, but I have the feeling I'm not the only one experiensing this.On some airports (allways addon scenery) I tend to have a major FR decrease whenever the A/C moves. It can be during taxi, T/O or when the aircraft touches down on landing. The effect is quite drastic, from 17-18 FPS to 1-3.Use the breaks and bring it to a stop - I regain the FPS, as soon as I start moving again I get the same slideshow. The strange thing about it is that this does not happen consistantly, sometimes I get this phenomenon and other times all goes smooth. I can't find any pattern other then it only occurs with 3rd party scenery.It can happen with any aircraft (had it with the complex PMDG737 as well as with the cessna 172).Maybe it has something to do with my Virtual memory settings - this is purely a hunch.Did anyone else experience this? can someone provide me with a clue?thanx - Mikep4 1.5GHz, G4Ti4200,512RDRAM, win XP pro, page file is windows controlled 512-1024 MB

Do you have onboard soundcard? That would explain itAllcott

No Allcot, I'm using SB Live! 5.1//Mike