The Word 2003 File Open dialog box column headings get reset to default(artist,duration,album,etc) after running CCleaner, even with the Office checkboxes unchecked.
I troubleshot it to the "Windows Explorer/Recent Documents" checkbox. Once unchecked the problem went away. It is easily duplicated.
I also commented out and deleted all of the MS office settings in the winapp.ini file and that did not change the outcome.
Weird.