INFORMIX SE Error 957 in ODBC connection from a CLIENT

Hi there, I have got this error "Cannot create/access database on NFS mount. " (-957 Code ERROR) when I try to connect to INFORMIX SE 7.10 (running on Solaris 2.4) from a PC using INFORMIX ODBC driver. sqlhosts file on Solaris 2.4 is: betatcp setlitcp beta betatcp /etc/services on Solaris 2.4 is: betatcp 1529/tcp I started as a daemon, from user root (on Solaris 2.4): sqlexecd betatcp To test the configuration I succesfully connected to betatcp from another UNIX machine using dbaccess. With this tool I connected to betatcp and I created a database and one table. But when I try to connect from ODBC on PC I've got the error -957 (Cannot create/access database on NFS mount.). Instead if I try to connect to an INFORMIX DYNAMIC SERVER (running on another UNIX machine), I have no problem and I can exec any SQL statement. Can anyone help me? Thanks Michele Dati