Collapses and does not respond (Hatred)

I downloaded hatred update 12 from SteamRip Let's Play. I play for about 10-15 minutes, and then the game is minimized and does not respond. My computer is 7x64 maximum, amd athlon 3 GHz 2 cores, 4 GB of RAM, nvidia geforce gt 240 1 GB of video memory. I disabled some services and put the video card on performance ... The game itself on the minimum is going well, but then it collapses and does not respond. What would you advise so that the game does not crash. Please help. I want to play so much :)