FS9 performing always 1 FPS at ground...HELP!!!!

OK...seems that athlon XP1800+ and 3D Blaster FX 5900 Ultra performs well...but...as the wheels touch down FPS touchs down even, 1.00 FPS clean!!!newest detonators 52.16, newest VIA drivers,etc...video settings are anistropic off and antialias at "Application"....intellisample to "performace"...FS graphics seting is maxed exept for weather at default....off: ground extended textures, grund scenery shadows...OK...why performs great until I touch the ground??? drops to 1 FPS until i stop the plane..if i move agin...1 FPS again...I posted this again...but this time I say IT GOES THAT WAY EVEN AT MINIUM GRAPHIC SETTINGS!!! even with default aircraft....default everything!!! 1 FPS even at airports like "Sarzana"....wich is just a grass runway....it sometimes does not happen...1 time over 10...but where's the problem?'0 a FSCoF bug?? :-hang Mario NoriegaA.C.T. Publishing Freeware group, www.actpub.comhttp://www.actpub.com/ad2k2ban2.jpg