Ok...I installed my graphics card a few weeks ago and I now recently have been having a pop up start coming up when I start windows. It says windows detects new hardware...so i goto the hardware manager I read the ? in the tabs and see is the graphics card I installed. I called PNY and they said I don't have the power to run it...I call dell and they say I do. I have a dimension 8400 with a PNY geforce 8600 GTS installed. Do I have the power or is there another issue??