I have a pentium 4 2GB processor with a stock video card. The screen went blank and I pulled the video card to look at it. The screen is a year old and I am using the DVI port. I plugged my old monitor into its VGA slot and still nothing. So, I bought a new video card the exact same as the one I have that isn't working. Still nothing from both the DVI port and VGA port. I can't see the screen at all. I recently put new memory stick in it, but it worked just the same before/after install..... What now? Its old but trusty and I don't want to stick a small fortune in it.