Sacro

Hi, got Arma2 yesterday, now running 1.02 patch and 186.18 nVidia drivers, I can play for 10-15 minutes but then it will freeze up, and slowly start cycling through textures on the monitor, sometimes I can ctrl+alt+del and get to the task manager, and it'll tell me that nv4_disp.dll has stopped working. Any thoughts? PC Spec: Asus M3N-HT Deluxe + Mempipe AMD Phenom II X4 940 @ 3Ghz (stock) 4GB OCZ Reaper 1066C5 (settings on sticker) Windows XP SP3