I have been experiencing flickering squares on my pc followed by driver crashing. Updated drivers to 327.23. Worked fine for a while till tonight when my screen went completely frozen with screen artifacts everywhere. I suspect that my GTX 560 TI is on its last legs. I don't play much games on the pc (comp passed to me by relative), but do work on photo editing with photoshop, etc. Please help suggest a decent graphics card on a budget. Thanks!