hey there, i just bought a Nvidia Geforce 9500gt 1gb PCI-E card and it says that the minimum power it needs is 350 watts. i have a 400 watt power supply. ive been running a pentium 4, 3ghz with windows xphome and 3.5g of ram, a radeon x1050 card, and 2 moderate sized hard drives with a intel desktop board D915GAv/D915pgn. my monitor is a BENQ fp757-12. NOW!!! i was so irritated when this new card i bought DID NOT WORK! nothing seems to work in this friggin comnputer for me ... i plug the new card in the place of the old card,and plug the monitor into the vga input, but when the computer turns on the monitor dosn't and the little red light on the computer stays on solid but theres not much noise. i end up just turning it off. i cant install the drivers for the new card because it need to be in my computer fo r it to install them....but i cant see cause the monitors not on...and ive tried wiping the other drivers from the old card and starting form scratch but that didnt work also... SO!!! am i going to have to buy a larger power supply, say, 500 or 550 watts? Or does my promlem lie elsewhere? Thanks to any responders!