Informix and IIS ASP problem

Hello all, at first, I use English NT 4.0 and IIS 2.0, and I install Informix CLI ODBC driver to connect to Informix Server, it work fine. Recently, I change to Chinese Windows NT server ver 4.0 and IIS 3.0 (install 2.0 from NT and upgrade by service pack) and problem come! I backup all the ASP from the English NT and format the HD and install the Chinese one, then restore the ASP program. After everything installed, I try use MS Access (through ODBC) to connect to Informix and find no problem, then I run the ASP again, however, the below message appear on the browser: Microsoft OLE DB Provider for ODBC Drivers error '80004005' Login failed /mywrite.asp line 300 (line 299) set RS_CPOHEADER = Server.CreateObject("ADODB.RecordSet") (line 300) RS_CPOHEADER.Open "cpo_header","dsn=CPO_ORDER_IFMX;uid=buyer;pwd=default", 3,3 I triple check the uid and password and sure its correct!!! (Anyway, I can connect with it in MS Access and these code run ok in English NT) is there any 'crash' between IIS 3.0 and Informix ODBC driver ? The other different I find between the English NT and the current Chinese one is the computer name of English NT is NTSERVER and the Chinese NT is WEBSERVER also, the IIS default user for English NT is IUSR_NTSERVER and for Chinese NT is IUSR_WEBSERVER (the Chinese NT preserve the same IP as English one) Since the Informix server and the network is not setup by me, I don't know weather its the FireWall problem, Informix server problem (only allow specific machine to connect). Can anyone give me a hint ? Thanks a lot. Regds LAM Chi-fung (a man drive crazy by the business department)