Error message - Converting Word Document to Adobe PDF

I have:

Word 2007
Adobe Acrobat Professional 8.1.2

I'm trying to create a PDF from Windows Explorer. If I right click a Word document, and select Create Adobe PDF, I receive an error message that says:

"An Unexpected Error Occurred. PDF Maker was unable to produce the Adobe PDF."

I have tried going into Adobe and selecting Help --> Repair Adobe Reader Installation, and then restarted my computer. This did not fix the problem.

I am able to produce a pdf from other files, such as Excel. I am also able to produce a pdf if I print to Adobe PDF from Word, or while having Word open, going to Acrobat --> Create PDF.

I have tried both Word 2007 and Word 97-2003 compatible files. Both were unable to produce a pdf, and resulted in the error message above.

Would uninstalling and reinstalling help perhaps?

Thank you.