Well just had a great few hours, my graphics card AMD Radeon HD 7950 decided enough was enough and stopped working, it just went black screen and that was its lot. I dug out my old ATI Radeon 4870 to get things back working. I would like some recommendations for a replacement card or better for the blown one, It must be plug in and go, I do not want to do any DIY electrics to my Mac, EFI boot if possible. I am in the UK. Thanks.