Everytime I try to play any dvd my system hangs. When I view task manager it reads "program not responding. I am also haveing problems viewing streaming videos online. I have tried several dvd programs with the same results, power dvd, windvd,ect. I have an ATI radeon 9800 Pro with the latest drivers and direct x9c. My motherborad is an ASUS P4C-800E deluxe. I have blown out my system and reformatted installed latest drivers and have the same results. I have tried different dvd roms without success. Any suggestions would be greatly appreciated.