Have you edited the registry to allow all macola users full permissions to the hkey\local\software macola, odbc, etc folders? And, did you use add programs (I'm sure you did) to install the macola, mssql clients, etc? If you are concerned about access to enterprise manager & such, you can still install the full client & then delete the shortcuts in the group so the users don't know they exist. I've seen some odd things happen if the full mssql client isn't installed.