I buyed 260 GTX Super Overclock and while i play CoD 4 after 30-40 mins i frozes my screen and cant do nothing why is it doing only in cod 4 where is the problem here??
Manufacturer: Gigabyte Technology Co., Ltd. 
Processor: Intel Core 2 Quad, Q9550, Socket 775, 3.20GHz 
Memory: 4012MB RAM 
Hard Drive: 6 TB 
Video Card: Gigabyte SUPER OVER CLOCK GTX 260 896MB 
Monitor: HYUNDAI 22" 
Sound Card: Realtek HD Audio output 
Speakers/Headphones: Logitech 
Keyboard: Logitech G11 
Mouse: Razer 
Mouse Surface: black 
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.090206-1234) 
Motherboard: Gigabayte 
Computer Case: HP