Excel compile error in hidden module

Hi,
Whenever I start up Microsoft Office Word or Excel on my computer, I get the following error message:
Compile error in hidden module
I have the option to click on ok and once I do so I can proceed and work in the Excel file.
This is a bit irritating since it pops up whenever I open any Word or Excel file.
Is there a solution to this error?
And what exactly does it mean?
It was not there before. I did a repair of my Microsoft Office 2003 installation but this did not help.
I still have the error message.
Please help.
Thanks in advance.
