Hi, I have an issue with my video card. I've bought in the past week an NVIDIA 560 GTX Ti 2GB from ASUS and it's been working fine. Now all my games suffer from low frame rate. PC: AMD Phenom II X4 3.2 GHz 4 x 2GB Kingstom HyperBlu ASUS M4A79T Deluxe Enermax Modular 400W PSU (I'm thinking this might be the issue). My question is if the games suffer from the 400W PSU (they've worked fine a week ago!)? And could the graphics card have been damaged? Thank you.