I installed 8.1 for the first time on my desktop just a few days ago and made sure all my drivers were correct from the Gigabyte website. When I first login sometimes my system will freeze, however I can still move around the mouse and ctrl+Alt-Del but I cant actually click anything. Not sure if thats a driver issue and it doesn't happen every time. I just hard restart and its fine the 2nd time. Happen to anyone?