Yes, I had (2) 780's in sli & control panel would crash, if it could get it to open at all. I spent 3 days trying to slove it, trying everything and then some. What worked (I think) finally was uninstalling EVGA PrecisionX & Running Ccleaner deleting a bunch of crap, reinstalling/clean Nvidia GeForce 327.23 WHQL . Still working. Have W/8.1 pre.