This has been going on about a month, maybe more.
I don't believe the card is going, it's fairly new and doesn't crap out if I fold. I do think it's more along the lines of driver, my media center software(Sage), or a loose connection somewhere. I'll check the cables and reseat the hardware later.
It never goes to sleep, tv is on 24/7.
The PCIe slot could also be a possibility, on my last motherboard with mostly the same hardware I didn't have any of these problems.