Computer freezes/crashes when running games.
I am currently having a little technical issue with my computer when I run games.
My computer specs are attached or you can go to http://220.127.116.11/computer.html to see.
It is a bit different with different games.
Soldier Front: Can do 1/2 a game up to 2 game until it freezes.
Left 4 Dead: Get 1-10 seconds into the game and then freezes.
S.U.N.: Choose character and then 5-20 seconds later it freezes.
A.V.A.: Rarely ever freezes. Once or twice so far.
Runescape: Anywhere between loading and just after login it freezes.
Godwars Online: Freezes at server select screen.
My computer can run other applications but not games.
I installed Norton 360 as my AV. I scanned the whole system, enable firewall and auto-protect but it still does it.
I repaired all system registry files.
Can anyone please give me any ideas on how to fix?