[CentOS] Lost file associations, too - urgent

I just returned from a week's vacation and brought my CentOS 5.0 system back
up, updated it, and somehow it has lost all the .doc file associations.
These used to be associated with the OpenOffice writer, but that's now
gone.  ACtually, all the "open with" associations are gone (rtf's now think
they should be opened by the text editor!).

I'm not sure exactly what the association should be - can anyone point me in
the right direction?

Thanks.

mhr
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