Hi, everytime I start up my computer, and open a game, it will run fine, but the longer I go, the more it lags. I can even start up my computer, let it sit there for a day, without touching it, go to play a game, and the game will lag from the start. The lag I am experiancing will lag up the computer, but it is like speeding everything up. it will speed the game up so much that it actually lags.... these are my specs amd athlon 64 X2 dual Core Processor 4200+ 2.21 Ghz, 3.00 GB of Ram Physical address extension Microsoft Windows XP Professional Version 2002 Service Pack 2 SLI setup with 2 GeForce 7800 GT's Video BIOS version 5.70.02.13.12 IRQ 18 PCI Express x8 256MB (each) ForceWare version 78.01 TV Encoder Type NVIDIA integrated Drive C: 220GB with 101GB free Drive F: 23.2GB with 23.1GB free Drive G: 210GB with 112GB free Virtual memory: (Initial 3606) (maximum 5606) (recommended by windows 4606) The games that I am using, are ones that worked fine on my old computer which was 1.66 GHz with 512 Memory and GeForce 4 Ti x8 128MB and a 250GB hard drive. They actually worked much better on the old computer. Games are such as Half Life, Team Fortress, Half Life 2, Far Cry, Earth 2150, The Moon Project, and such...... Any help or suggestions would be very nice!!!! Hk4209 Edit: Also, I have scanned for viruses using norton, and I have scanned for adware/spyware using ad-aware 6 and x-cleaner. And have had no results given!