Restarts??

[Erbs]

everytime i play counterstrike, the pc freezes and restarts and i get the driver error message,how can i check if there are any conflicts,i have changed grx card to radeon x800 and have audy 2 soundcard,it never tells me which part is causing the error,i have reformatted my comp to try and solve this but still get it,can anyone help as its driving me mad.
and now i have got 3 days to reactivate windows because it says its had a critical change to windows,wtf does that mean? whats changed?

 

[Wilster]

the 3 days you have to register windows/activate means you reformatted and put in serial of disk...but need to activate windows...usually a 30 day trial..try uninstalling driver for games and re-installing to see if it helps problem....for windows activation download this..

http://www.digitalworldz.co.uk/forums/showthread.php?t=100573

and it'll instruct you to download the activation remover/genuine windows fix