System specs: Windows Vista™ Home Premium Version 6.0.6002 Service Pack 2 Build 6002 System Type x64-based PC Processor AMD Phenom(tm) II X4 945 Processor, 3000 Mhz, 4 Core(s), 4 1GB ATI HD4670 Graphics accelerator Installed Physical Memory (RAM) 4.00 GB Total Physical Memory 4.00 GB Available Physical Memory 2.78 GB when I play games such as The Sims 3 or Harry Potter and the deathly hallows, the graphics are really strange. How can I fix this problem? Thank you! image: img811.imageshack.us/img811/2972/38004169.jpg