Hi Abbafan,been following your saga in attempting to get SH3 up & running.One of my computers has almost the same spec's as yours with the exception of the video card ,mine is a geforce 7800 gtx 256mb & 2gb ddr system ram.I,m a little confused as to which video card your running is it a gf 6200 or a gf 7800?Either way both those cards should be able to run SH3 including GWX V 1.03 if set up properly.I would open the case & check for looose connections & if your video card is properly set & the fan is working.If so I would go to the Nvidia site & download the latest drivers for your card.I noticed your monitor setting is 800x600,I would reset it at 1024x768.One final question do you have any other high graphic content sims? if so do they run ok or is it only SH3 thats giving you problems?
Cody