IE 6 session hangs using SSL.

[saladhead]

I have a client using an app across the internet, hence the use of SSL. W2ooo user experiences intermittent hanging when using app. Time out after approx 9 min and then browser session is either hung or usable. TRace by user shows fin from proxy(app side), ack from user, but no Fin from user to close session. Netstat -an confirms workstation in "close wait" state (ie waiting on app to close session).Another scenario of hang shows connection to app,redirect to SSL,then SSL cert shoud start from user,but it doesn't start, so proxy tells user to buzz off(send fin after 31 seconds)it is ack'ed by user,but no fin sent back by user and browser is hung again for 9 minutes.