Hi. After installing a new video card (NVIDIA GeForce FX 5700LE), I am having boot problems. When the computer boots, it boots correctly. The problem is that it doesn't want to start up. I had to hit the power button repeatedly to get it to fire up. I first thought it was a problem with my switch, but am now wondering if it is a power supply issue. Could this video card cause my computer to need a larger power supply? Thanks!