Thanks folks.
I put my friend's 760 in my system, after uninstalling the AMD drivers and cleaning the registry. Games seem a bit better, but the system is acting odd, and my USB ports are no longer working correctly. I suspect the AMD chipset drivers are unhappy. I can't find them anywhere. It doesn't help that I run 8.1, but the download site at ASUS doesn't even have chipset drivers for 7. I may just get all new stuff and put my current setup in another case. Of course this could also be due to the age of my system. I tried to do a Windows refresh but couldn't. Like many others who went from 8 to 8.1 my system won't refresh, it gets an error. MS says to put an 8.1 USB stick in and it should be able to reset, but my system isn't seeing the USB drive. Oh well, maybe I'll make an 8.1 DVD.