Error "Compile error in hidden module: DistMon" when starting and closing Excel 2010

I have had this error for while now using Windows 7 Ultimate and Office 2010.

The error is caused, apparently by Adobe PDF maker and there is another marker from Microsoft to Norton.

I have removed the pdf maker files and still get the error.

I get no results when I search for any part of the error here.

Does anyone know of a cause and fix from Norton?

The error message occurs twice on start and twice when excel is closed.