It looks like you've got some ghosts from an early bug still haunting your browser. To fix it, find a Logout button (there's one on the front page) and click on it to explicitly log out. Then restart your browser and login again. Please let me know if you still have problems after trying this. Sorry for the inconvenience.
Are you logged in on any other computers or smart phones?
I was having problems and had to log-off, close the browser, and clear my cache....not only on my laptop, but also on my iphone. It seemed to do the trick.