Upgrade to 5.5.2 won't acknowledge login to website to edit

Permalink
Just upgraded to 5.5.2 from the most recent version through the upgrade process within the dashboard. When the upgrade was complete, I was automatically taken to the dashboard of the new version. When I click on Return to Website in the top left corner, I'm taken to the website but not logged in. When clicking Login to website, I get the login page but entering the info only takes me back to the website and still not logged in.

Same issue on Firefox and IE8. I'm running on Windows XP.

I looked for a link in the Dashboard to back out of the upgrade but do not see that option either.

Is this a bug or am I doing something wrong?