Hi everyone! I'm in a bit of a quandary, I hope you can help... I have an Asrock 4coredual VSTA motherboard and up until last week I was using an nVidia GeForce 8400GS graphics card which was OK for most things but lagged like hell on certain games, so I decided to upgrade the card to a GeForce GT 520. Trouble is, when I installed the card in device manager it stated that windows stopped the card from working as it had reported problems (Code 43), thinking it was just a driver problem, I downloaded and installed the latest drivers but to no avail, I'm running windows 7 (32 bit) and have 2gb RAM Any help you can give to help resolve this problem would be gratefully Accepted. Dave