Entourage error when opening any MS Office program on a Mac

Hello,

We have an issue here where we have a Mac user who was using Entourage.  This is on our Windows network by the way.  We recently installed Office for Mac 2011, because the user was having database issues with Entourage.  Well, now every time she opens any Office program (Word, Excel, Outlook, etc.) an error pops up (see attached).  I have seen remnants of a previous install of Office on this Mac.  Has anyone seen this before?  It is simply an annoyance at this point.  The Office programs seem to function normally.

Thanks,
Mike