Well I ended up calling Evga for assistance. First guy said my processor was too old for this card and suggested I get a 550ti. So I returned the 560 to amazon. Once that was back in the mail, I was itching to get a card, so I called Evga again and the second guy said the 560 should have worked, regardless, and suggested it was a software problem.
I received the card today, we put it in, and the same damn problems showed up. We called Evga this evening (24 support--isn't that nice?) and he suggested an upgrade to the chipset driver and the bios.
A subsequent upgrade to the bios seems to have fixed the problem. Chances are I could have gone with the 560, so I am kind of bummed but I AM getting better performance than before with the 550ti, so I am just keeping this. (It was cheaper anyway... and has twice the graphics memory. Ha!)