Unable to make sap tx iview to work

Dear All,

I am trying to run sap tx iView which has R/3 as system object. I was successfully tested SAP connector test for my R/3 system object and also configured user mappings.

However, after creating the sap tx iView and try to run it using preview option I am getting the following errors on my browser in a popup window

service "unknown with list of parameters such as,

Component: NI(network interface)

Release: 640

Version: 37

Module: ninti.c

Line: 505

Method: NiPGetServByName2:service" not found

Return code: 3

System call: getservbyname_r

Counter: 1

Config:

-

R/3: ECC5.0

EP: 6.0.9

WAS:6.4.0

This is urgent .. pls help