ok so heres all the info that i know to give
Operating System: Windows Vista™ Home Basic (6.0, Build 6000) (6000.vista_rtm.061101-2205)
Language: English (Regional Setting: English)
System Manufacturer: Micro-Star International
System Model: MEGA BOOK M670
BIOS: A1632NMS Ver7.04
Processor: Mobile AMD Sempron(tm) Processor 3400+, ~1.8GHz
Memory: 766MB RAM
Page File: 918MB used, 876MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 10
DX Setup Parameters: Not found

if it stays on long enough next time i'll write exactly what it says

and i've been on the nvidia site and the drivers i have are the latest ones and the games are gone now my pc is a blank screen with only avg free and reg cure on (i got them hoping to solve the problem) but just ten mins ago it happened again. the guy in the shop says he'll take a look for £40 please don't make me pay him cos i'll cry thanx in advance jojo