dont know if it would help, but you can all ways try exiting the game and bnet complete(like, a full log out to 100% disconnect from blizzards servers), deleting the cache(im guessing both bnet and sc2 would have one. dont recall off the top of my head and its midnight so i gota get some sleep. if you cant find em let me know and ill dig around a bit), and then reloging into bnet.