If you were a beta tester, there might remnants of previous installations on your computer. You should use the Adobe Cleaner tool which I heard yesterday now works with CS6 to remove any previous crud.
It most certainly does work. I needed it to clean up a Master Collection install.
All fixed. The URL referenced** was the key to the fix. It was the Adobe PCD folder in Application Support. Removing it (to desktop) and reinstalling InDesign fixed the error. Thanks for the help gang!