From: coffeman0101 on

Well, I solved the problem by uninstalling MS Office 2010 (beta)
'Click-To-Run'.

I then proceeded to downloaded the full installation for MS Office 2010
(beta) and installed it. Problem solved. For whatever reason, the
problem was related to the fact that I was running the click-to-run
version of the software ('Microsoft Office Application Virtualization').
Windows-7 simply didn't recognize it properly.