Error: Restart Microsoft Office Word

[Michael]

Everytime (I think) that I shut down MS Office 2007 Word or PowerPoint I get
the error: "Microsoft office Word [or PP] has encountered a problem and
needs to close. We are sorry for the inconvenience. If you were in the
middle of something, the information you were working on might be lost...."
The odd thing about it is that I WANTED to shut down the program and lost
nothing.

Any ideas???

Thanks!

Michael