SSL Cert Error only for only user profile

We run a website, nikkisballoons dot com.  If you click on the "login" button at the top, you are taken to the secure login page (https).  I am able to visit this page, with no security errors.  When i click on the "padlock" in IE or view the cert info in Firefox, everything comes back fine.  I've tried from 5 different PCs, on 3 different internet connections - and they all open the page with no errors.  However, one particular employee here receives a Certificate Error message everytime she accesses the secure portions of the site.  When i log on under her windows profile, (xp workstations) i receive the cert error.  when i log on the same pc as any other profile, i DO NOT receive the error.  so it's been narrowed down to a profile issue.  i've cleared browser cache, cleared ssl cache, restarted..  i've uninstalled IE7, same problem appears in IE6.  installed firefox, DOES not give a certificate error.  obviously the simple solution (and probably the best one, but that's a matter for a different thread) is to use FireFox for this website - but that's not going to be an option in this case, and it doesn't resolve the actual issue.  So, any expert thoughts would be appreciated...
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johnb6767Connect With a Mentor Commented:
I hate suggesting this, but the easiest thing to work out a pinpointed profile problem, is to rename the local copy to Profile-old, and log in again and rebuild it from scratch. You can spends days trying to find the exact failure in a profile.....

To rename the local copy of the profile....

My Computer>C: >Documents and Settings>YOUR USERID

and rename it to

My Computer>C: >Documents and Settings>YOUR USERID-old.

Then login again and retry it....

This will need to be done after a reboot, using another user account other than your current one. Just create a new temp user to do this with, and make sure it has admin rights.....

Then just log back in and retest....
jc8125Author Commented:
well, after some more playing around - i discovered that the reason my profile and the admin profile weren't receiving this error, is because they connect directly to the internet, whereas the user profiles connect through proxy server.  once i removed the proxy from user profiles, they are able to access page without any errors.  i noticed that when the user browsers were setup to connect through proxy, they had the proxy listed for both http and https connections (which is unnecessary, as safesquid does not handle https requests).  i created a new user profile, filled in only the http proxy, and am able to connect to site thru safesquid.  old "problem" profile is still giving error, even after removing/correcting proxy settings.  have decided to scrap old profile and continue with new - as this user didn't have much info associated with old profile.  assigning points for your attempted assistance, which was on the right path..  
Glad it is fixed at least....
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