Assasins Creed2 display Problem

Hi My Name Is Faizan And Im Frm Pakistan.I have A very Serious Problem.I have Just Installed Assasin Creed2.Everything was working fine when at one point my game stucked.The Game Is Not Moving Any Furthur After That Point.and after a while it shows a blue screen with some details.and my pc restarts.Now everytime when i reached that point in AC2 the same thing happens with me.Although I HAve installed LAtest drivers frm www.nvidia.com but still the same problem.i used to get an error stating “THE “nv4_disp” DISPLAY DRIVER HAS STOPPED WORKING NORMALY”.I dont know how to deal with this plz help me Im very helpless.plz plz contact me soon THNKS!!!
I have Specifications:
System:IntelPentium 4
OS:Windows XP Profesional SP3
RAM:1 gb
Processor:3.20Ghz
Vdo Card:Geforce 8400GS 512mb
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Answer #1
Moved from Gamez to Helpdesk.
Answer #2
your computer doesn’t meat the requirements of the game at all Supported OS: Windows XP / Vista edit:works with window 7
Processor: Dual core processor 2.6 GHz Intel Pentium D or AMD Athlon 64 X2 3800+ (Intel Core 2 Duo 2.2 GHz or AMD Athlon 64 X2 4400+ or better recommended)
RAM: 2 GB (3 GB recommended)
Video Card: 256 MB DirectX 10.0�compliant video card or DirectX 9.0�compliant card with Shader Model 3.0 or higher (512 MB video card recommended) (see supported list)*
Sound Card: DirectX 9.0 or 10.0 compliant sound card (5.1 sound card recommended)
DirectX Version: DirectX 10.0 libraries (included on disc)
DVD-ROM: DVD-ROM dual-layer drive
Hard Drive Space: 12 GB
Peripherals Supported: Keyboard, mouse, optional controller (Xbox 360 Controller for Windows recommended)
*Supported Video Cards at Time of Release:
ATI RADEON X1300-1950 / HD 2000 / 3000 series
NVIDIA GeForce 6600-6800 / 7 / 8 / 9 series