I've been experiencing for about 6 months some very annoying graphics problems with my pc. I've waited this long as I don't use it very much nowadays (It's my old pc, so I can always use my new one), but still sometimes I need it (it's in another room). It's located in my kitchen, so it's a pretty harsh environment, but I try to clean it on a constant basis.
The first thing you notice is that the Windows logo which appears at start-up (the one with the progress bar) is a bit more pixelated than it should be. The cursor is also pixelated, the icons on the desktop have a black background. Everything looks pretty bad (with some random lines, black pixels etc), and after 90% of actions the screen turns black, turning back to normal in a few secs (or never turning back to normal). I've noticed that opening anything does that, except folders and websites. Videos don't work, but online (youtube streams) they work fine. If I click back on a website, the screen turns black, but comes back to normal in about 5 secs.
I've tried reinstalling windows, and it worked fine for about 1 hour, then it returned to it's normal problematic status (at first I thought it was the hardware, it's had it's years, but then why would it work fine for 1 hour?).
Do you know a simple site which can display my system specs? The overdrive test at pc pit stop doesn't work (can't get to install Neptune for firefox, and IE gives me the don't send error after about 2 minutes of black screen). Device manager also makes my screen turn black for an indefinite amount of time.
As far as I can remember, it's hot an Nvidia geforce 7600 gs video card. I can search the original driver cds for the motherboard, it's a gigabyte but I forgot the model.