BSP session management in Portal

Hi all,

I'm not sure if this is a Portal or BSP question...

I have several BSP Iviews in my portal, and when i'm navigating between the different iview, I'm getting a large number of session of type "Pluggin HTTP" in SM04 transaction.

When the users logoff in the portal some of the sessions aren't close.

So I have two problems:

1- when the user is using the portal is there way of closing the bsp session when he moves to another iview?

2- why aren't all sessions been close?

Any ideas?

Thanks for the help.

Best regards,

Paulo Ruivo