Testing Web Dynpro ABAP application with ECATT on 7.02

I am trying to do a recording of an WD4A application on a 7.02 ABAP trial system.

I have followed the instructions in [SAP Help|http://help.sap.com/saphelp_nw73/helpdata/en/49/70a78c81463e90e10000000a42189c/frameset.htm] to the best of my efforts -- I have setup the ECATT_HTTP user, an RFC connection and the ECATT_RECORDER ICF node.

When running a test script I am presented with the error message "An error probably occurred during the logon to the Web Dynpro target system. Check user name and password in your eCATT target system."

Does anyone have a clue on what might be missing here?

thanks!