Here is the site in question: http://www.det14.com
I originally had the Default 1.6 and implemented Patriotic 1.1. It did not work as it placed the right-hand column under the main text (body).
I then changed back to Default 1.6, and it 'kept' the error and placed the right-hand column under the body.
I've left the current theme - Basic2column - to show no matter what theme is loaded, it still reverts to the original error caused by Patriotic 1.1.
Checked validation and no errors. Problem appears in both FF and IE. Any suggestions, advice or solutions would be appreciated.