System Prefs and App Store behaving bizarrely since installing ML

Question

Since installing Mountain Lion a few days ago I've been experiencing some troubles with my System Preferences and the App Store. When I try to launch "Security & Privacy" "Mail, Contacts & Calendars" "iCloud" "Software Update" or "Notifications" it gives me the error "To use the "[Name]" preferences pane, System Preferenes must quit and reopen at which point it launches in 32-bit mode and then I get the error "You can't open [Name] preferences because it doesn't work on an Intel-based Mac". I figured an update may be available, so I try to launch the App Store and I get "App Store cannot be opened because of a problem. : Check with thte developer to make sure App Store works with this version of OS X."
However, if I login to the guest account on my computer I can launch the App Store and edit all my System Preferences no problem. I have already repaired disk permissions, made sure the "32-bit" box is unchecked, etc. and reinstalled the OS.
Please Help!
FYI: I'm on a iMac 2.66 GHZ C2D w/ 8GB OS X Version 10.8 if that matters

Answer 1

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the page that opens.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left.
Click the Clear Display icon in the toolbar. Try the action that you're having trouble with again. Post any messages that appear in the Console window – the text, please, not a screenshot.
Important: Some private information, such as your name, may appear in the log. Edit it out by search-and-replace in a text editor before posting.