OBN (Object based navigation) opens content in new window/tab

Hi,

I'm having an issue with the behaviour of OBN (Object based navigation) in my Enterprise Portal.

This is the scenario:

I have a WDA (ABAP Web Dynpro) from which I call the OBN to open a page. What I want is that this page is being opened in the same portal content area, i.e. NOT in a new window. Unfortunately, the page is opened in a new tab.

I've checked the Business Object definition and it should be OK since the destination is evaluated correctly.

The page I'm navigating to and the IView that it contains both have the property "Launch in New Window" set at "Display in Portal Content Area".

We've upgraded from NW 7.01 to NW 7.40 and now the system is behaving like this.

What can I do to open the page in the same portal content area?

Thank you,

Pietro