OnLine 7.1 Connection Problem!

Hi, I am using ONLINE 7.10.UD2 and 4GL AH6.00.UE6 on DG/UX 5.4.R3. I can connect databases on local host with dbaccessand isql, but I can not connect with 4GL program. I set my sqlhosts: s1tcpsvr ontlitcp s1 s1tcp and my 4GL program is: MAIN database sysmaster@s1tcpsvr END MAIN There is a error number -25574 appear when I run this program. What's happen to my system? Could anybody help me? P.S. I can connect databases with dbaccess and isql, but 4GL program. -- --------------------------------------------------------------------------- Jerry Tan System Engineer Tatung Co. E-mail: tan@sess10.tatung.com.tw ----------------------------------------------------------------------------