I would look to see what kind of users are enabled for each computer. If you are using Windows 2000 or later, it is possible for options to be stored in an “All Users” area. It’s been a while since I’ve used Windows 97, but I suspect that either an option in the Options menu (is that what they called it then?) tells Windows 97 where to save things, or it’s a feature of the permissions/user type of the user logged on.
This is all very vague, I know, since my poor synapses have difficulty with data more than 5 minutes old. I DO have definite memories of dealing with this issue myself though, and, as I recall, was successful.