I have no FPS drops at all. It does not matter if I run something in Windows XP or Windows 7
Anyway, no matter which Video setting I chose for Orbiter in Windows 7, I always get this as soon as I change my FOV (which causes the sky to "disappear"):
Orbiter does work perfectly in Windows XP. But it did never work in Vista or Windows 7. And this is the second computer I use to try to run Orbiter in Windows 7.
Well, I get a new video card in about ten days from now (for the third time within years I tried to run Orbiter on Vista and now Windows 7). If Orbiter does not work properly in Windows 7 this time, well, then it is definately not something on my end. I have obsolutely not trouble at all using anything on Windows 7 I used on XP for years, especially MSFS, X-Plane and Space Shuttle Mission 2007, which all works just perfectly in Windows 7. The only thing that does not do so is Orbiter...