None of my Word documents will open, new or old or just created.

[Nicole]

I've tried playing with the security levels, reinstalling the Office suite
and still cannot get any files to open?!

 

[Yves Dhondt]

What happens if you open Word first and then try opening your document from
inside Word? Does that work?

Alternatively, could it be that the following applies?
http://support.microsoft.com/kb/835404

Yves