Just can't see it? I had a problem over a year ago, where my driver was missing a file for my video card. I tried reinstalling the driver multiple times, but the file was still missing for some reason, and somehow my display device got turned off, so I couldn't see the screen. I tried reinserting the video card, after removing it, and a few other things, but I couldn't fix it. So I sent it to a tech, hoping they would be able to, but they said they couldn't and didn't know why, which was shitty, because the only thing they could do was whipe the HDD and reinstall. Which I could have just done myself. And so they did, sent my computer back, and my video card hasn't worked properly like it used to ever since.
So maybe try taking it out and putting it back in. If you haven't already. Cause that's what *should* have worked for me.