More ODBC Problems

We have Navision 3.70 setup as a server. The dsn using the 3.70 ODBC driver that is setup on the same server (defined as server, not local) works fine on that server. If I setup an identical dsn on a remote machine, it fails. If I test it in Excel, I get a “General ODBC Error” followed by a “Couldn’t read this file” message. ODBC for Navision 2.50 worked fine. We use ODBC for a LOT of activity so any ideas would be hugely appreciated. Thanks.