My app is frozen. Recently it seems I have been having problems sync-ing my data to mobileme - that may be a mobileme issue. However, my app is frozen at the mobile me login - that is, when I open OmniFocus I am at the MobileMe login page. I can enter the login name and password and hit the login button, but it does nothing. I cannot cancel out either. The app seems to just be frozen. How do I reboot the app? Do I delete it and reinstall?