Thanks for the quick response! Yes, all users can see the (local) I: drive. I gave full access rights to all locally defined users on that Terminal Server. (This is a standalone test server, not connected to any domain or directory service - and is similar to how we intend to run the 'live' server.). We just tested EDIsoft's Merchant software and it appears to work just fine - just like all the other Adagio modules.
We'll do some more testing tomorrow by having two users enter multiple new orders into Order Entry at the same time. We want to make sure there are no data integrity issues in a multi-user environment.
I'll report back once we're done with testing. I'll be in a training class for most of next week - so it may take me a week or two to post my report.