I've not had any trouble and I usually log in 2 or 3 times a week. I am very careful to log in and then log out of every session. Haven't had any problems since I started doing that. Logging out seems to be important, especially if you visit more than a few pages or sites within the Disney umbrella.
FiggieFan & tlwfun89 - Try clearing out all of your cookies and cache. That may fix your problem. If that doesn't work, try a different browser. Good luck!
Hope you find out what is causing you the problem.