Citrix Client Config Question

I have an citrix configuration issue that I cannot resolve. The problem is
that we have to change the server names of our citrix servers due to a
policy change. In order to minimize the amount of change to the user, I cut
a new installation set for the client. The issue is that although the setup
replaces the program directory and the setup contained there, it does not
copy it to the user's profile directory (profilepath/application data/ica
client). The only way to get the new settings to copy over to their profile
directory (and therefore for them to see the new server names) is to delete
the directory. Removing the client does not delete the application data
directory...I cannot make a .bat file because there is no command line
argument to unhide a directory (only a file), so I cannot delete it from the
command line.
Has anyone else had a similar issue? Have you found a Citrix switch
somewhere (been looking!) to force this data to be refreshed? Or did you
have your clients change their setup information?
Any ideas would be helpful. We have a large number of users overseas and
trying to walk them through, even with documentation, how to change their
setup is a painful endeavor.

Thanks and regards,
John

-------------------------------------
OneWorld B733.3 (XE)
SP 19.1_B1, Update 6
Win2k Server SP3
SQL 2000, SP2
Metaframe XPa v1.0/SP3
-------------------------------------

I had to perform something similar. I didn't find anything helpful like a command line switch so I wrote a amall PERL program to search/replace the server name from all the profileroot on down. I put this in the users' login script. If you are interested I can post the source of the program.
Also an option to consider is uninstalling the PN client and using the PN agent instead. This stores the configuration on an NFuse web server so there is only one place to change it.
-Matt