Multiple Portal Authentication when closing Word document

Hi all,

We are on EP6 SP2 Patch4 HF7 and CM HF6. When closing a MS Word document accessed from the KM Repository multiple Portal authentication popups appear. This only happens to Word documents. Other documents like Excel, Powerpoint, pdf etc. close without any popups.

The problem only happens when going through the IISProxy filter.

Does anybody have any ideas ?

Thanks

Jose