Office 2007 open/save/save as freezes

I have a new computer (less than 6 months old) that is running Vista 32bit and Microsoft Office 2007. I downloaded and opened a Word file that I emailed to myself and when I went to save it, Word froze. Now anytime I open Word and want to open, save, or save as any file, Word freezes on me. I reinstalled Word and the same thing happens. Any advice?