With latest beta patch, I had similar problem as reported here (see screenshot)
http://forum.1cpublishing.eu/showpos...&postcount=363
I made changes to my driver setting and now, so far, don't have this problem anymore:
This is on a GTX285 OC 1GB (700mhz), 4 GB Corsair RAM 1600mhz, Q9650 CPU 3600mhz