Thank you John Ci (I think)

I believe that it was John Ci who suggested setting up a hotkey to "Refresh scenery." I did this and never used it until today. But today I needed it, I used it, and it worked. I taxied out for a night departure with the frames around 15. As I turned toward the active runway (and coincidentally toward some very dense autogen buildings), the frame rate dropped to 2.8. I tried hiding the instrument panel, changing views, looking skyward, and nothing helped until I refreshed the scenery. Immediatly the frame rate went back up to 15 and stayed there.I performed the same procedure with the same results again to prove it is repeatable. Then I turned the autogen off to prove that it is the cause. So I know what causes it (autogen) and how to correct it (I set key chord Ctrl+Shift+s to refresh scenery, as John suggested). Thanks John. R-System: Celeron 2.0 GHz, 512 MB DDR RAM, ATI Radeon 7500, WinXP Home, autogen set to "Normal," Frame Rate locked at 15.