removing the default subject prefix

We have a brand new argon server appliance running version 1.94.5 with quite
a few lists that were imported as part of the rollout of the server. It was
originally on a cobalt raq4 server.  

The way we are setup, we have quite a few lists that are nested (a master
list, sending to several sub-lists, each sending to a specific group of
users). With this new version, we noticed that it adds the prefix to each
message. On the lists that are nested, we end up with multiple prefixes on
the subject line. 

Is there an easy way to turn off the prefixes? I found the settings in the
individual list configs that can be changed. However every time a list gets
touched by the server's GUI, it resets the value as part of the reconfig. 

Where can I find the master config for majordomo so that when the server
rewrites the config files for each list it doesn’t put the setting back in
that we removed?

Thanks!