Well... I went and exchanged the video card today. Came home installed it, plugged the power on the card and the comp., press the power button..... nothing friggin' happens again. No hard drive activity, no BIOS, the monitor won't even blink..... Motherboard is a P4VMM2, pent 4 processor, 512MB (Iknow I need to upgrade

) Any ideas what might be wrong or what I could do to make this work?
PD. turtile thanks for your help