FS9 A/C Texture Issues

any ideas here guy's, I'm up to date with my drivers,this keeps happening from time to time when going to in or outside views,SteveASUS Enforce2 MB A7N8X Rev2AMD Barton XP3200+Seagate Baracuda 160 GiG Serial ATA HDD.1024MB Corsair Extreme Low Latency CAS 2 RAM.Vantec Stealth 520W PSU.NEW Herculese 9800Pro Graphics card 128MB.4X Vantec Stealth Fans 120mm.Vantec Stealth CPU Cooler.Vantec Nexus Rehobus controller.Vantec Nexus Multipanel for keeping an eye on the temps and speeds etc and has another 2 USB and Firewire ports