Opening Cursor through Sequelink .

Dear netters, I am encountering a problem on informix using PB on Sequelink ODBC. My PB Appl. has a cursor defined to do a select on a table. It works fine at one point when the database is located on the same Informix server that the Sequelink Server on host is defaulted to use. E.g. mydbase@myserver Then the SA switched the Sequelink server to another Informix Server. I have problem on opening the cursor on "myserver", going through Sequelink's default informix server. I am getting error -404. What am I missing? Any hints will be highly appreciated. Brian Li