I don't read that you have atttempted to reset your preference file. That would be my next troubleshooting step. http://www.lightroomforums.net/showthread.php?14226-Resetting-(or-Trashing-)-the-Lightroom -Preferences-file
Thank you so much for the help. Deleting the preference file worked! I was not aware of this file but I'm just glad that it was something simple. Thanks again!