After a huge cock up by aria.co.uk when returning my two 6600GTs I decided I'd use the credit they eventually gave me to buy something a little bit better and got myself two BFG 7600GT OCs to put in SLI. The problem is when I shove 'em in together with SLI enabled I get little green artifacts across the screen, however when the cards are in individually they run fine and I haven't noticed any problems with either of them.

Anyone have any idea what might be causing this? I reckon it's gotta be either the SLI bridge or the second PCIE slot, perhaps.

Also, anyone know where I can buy a replacement SLI bridge connector in the UK? They're quite tricky to find.

Thanks