Someone help me, i have been having a problem with lag for a while now, i dont know what it is, my computer is farly good, 2.8ghz cpu, 512 ram, with some video card i donno what it is. So this is whats happening.. i will open a computer game and it will run fine for about 20 minutes then it will start laging like crazy.. and the only way to fix it is to restart but that only gives me about 20 minutes of play again... i have cleaned all my fans turned off my compuetr for days then tryed again and the same thing happens, so i dont think its a heat issue.. and i aslo dont think it can be a spyware problem cause i reinstalled windows and only installed a game and it still happen, please help me any advice would help 
