Uninstall the previous AMD driver. Look at this guide to see the right/proper way to do it http://www.overclock.net/t/988215/how-to-properly-uninstall-ati-amd-software-drivers-for-graphics-cards.
Afterwards, I suggest uninstall geforce driver as well and then reinstall it
That seems to have done it! Thanks so much. On another forum, they were telling me it was a bad card.