Eudora Problems - Select users, at a loss as to where to find problem

Thanks in advance to anyone who can shed light on this problem. I am
completely and utterly stumped. Even submitting this question to
Eudora forms hasn't yielded a solution.

Background and details:

I have users who are using Macs, Panther OSX version 10.3.9 and
Eudora version 6.2.3 who are having intermittent problems where their
eudora will hang for a very long time before it downloads their mail
from our mail server. It's not the CalMail or our network because no
one else is having this problem. It is only a select few users who
seem to be having the problem. Some of them are even having 550 relay
errors for outgoing email to yahoo etc. despite making sure their
security settings are correct etc. They don't have this problem when
they go to the web site, calmail.berkeley.edu so it seems to be
localized to their computers. A couple have switched over to Mail and
the problem hasn't replicated itself so it seems to be localized to
Eudora on their computers. They aren't experiencing any other
application or OS issues (crashing, kernel panics etc.) so I don't
suspect the OS, but I could be in denial about that (:)).

What we've tried:

We have tried everything such as trashing and recreating their eudora
settings files, the plists files in their users>library>preferences
folder and they seem to help for a few weeks, but the exact same
problem occurs. We've done this over and over again as well as
reinstall the application Eudora several times.

Our next step is to create another account to see if the problem
replicates in a "clean" account, but our worry is at least one person
who does Payroll here isn't willing to be "disconnected" to be
experimented on or to have us transfer everything into another
account to solve the problem and we don't have a spare computer to
give him to keep his productivity going.

What I hope to find are suggestions to where to look (e.g., potential
files that I might try to delete etc. like could there be something
else other than the settings file in their Eudora Folder?) if the
problem turns out to be user account specific.

Any suggestions are welcome. I'm at a loss as to what else to try
other than the drastic, which for now, isn't being "welcomed" with
open arms. Hoping to avoid doing this to 4 different computers as
well, but understand and fully accept that it might have to come to
that.

Thanks! All help is appreciated...sigh...

Beth

-- 
***************************************************
Beth Muramoto
Computer Resource Specialist
Graduate School of Education
University of California, Berkeley
1650 Tolman Hall
Berkeley, CA 94720
Email:  mailto:bmuramot@berkeley.edu
Phone:  (510) 643-0203
Fax:  (510) 643-6239
The Formula for Success:  Underpromise, overdeliver
				- Tom Peters
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