Odd Problem - Cannot view users from configuration

I am having an odd problem where I am unable to view any users within rt
from the configuration panel. I just upgraded RT from 3.0.7 to 3.2.1
and the problem remained. What happens is I try to go to Configuration
-> Users -> Select User. This brings up the search page. No matter
what I put in the search box, no users are returned. I am still able to
log in, though, so I know at least my account still exists. Also, I
created a new user and I am able to log in as this new user. The
problem began after the machine crashed and we had to fsck a number of
the partitions. I’m not sure where to even begin looking for the
problem though. Any thoughts?

Thanks,

Susan M. Keaney