At this point, I think Office is in a precarious enough state that you
should to the following:
1) Uninstall Office using the Remove Office application found on your
installation CD's Value Pack folder. Don't just throw the Microsoft
Office X folder away.
2) Reinstall Office
3) Locate the Office Component Plugin and ctrl-click/Get Info to
determine which version of Office you have.
4) Download and run the appropriate updaters from Mactopia Downloads:
http://microsoft.com/mac/downloads.aspx
If Office version is 1.5 ==> none
If Office version Is 1.4 ==> 1.5
If Office version is 1.2/3 ==> 1.4, 1.5
if Office version is <1.2 ==> 1.2. 1.4. 1.5
5) Reset disk permissions:
Run the Disk Utility application from the Applications:Utilities folder.
Select your disk and choose First Aid/Reset Disk Permissions.