Hello. I own a new pc. Windows XP home ed, version 2002, service pack 2. AMD Athlon 64x2 dual core processor, 4200+. 2.2 GHZ, 1.00GB RAM. NVidia GeForce 8500 GT graphics card. Pc works well until i play my game (SIM CITY 4 Deluxe edition). After a non-specific period the screen turns black then returns to my screensaver. When i reload the game starts at the last save point. I consider myself a novice, and don't have any ideas to solve this problem. Please advise. tony0906.