two error messages within Word:

1. I get an Office assistant error message, about how it cant find the files
to start it.
2. When I try to send an email within Word I get this message, "Word could
not load the e-mail envelope.  This could be caused by a network connection
problem or a problem with your office installation.

I have tried to repair and reinstall Office(2000) and that did not help.  I
have also added all updates as necessary.

Any suggestions to these problems?  I'd like to get them resolved before
rolling out Outlook 2003 to all workstations in company.