EV OWA 2013 and the Mail App

Hi All

I have an issue with the OWA 2013 Mail App.

In so much that from OWA on the Mail app loads fine, and the Search and Archive Explorer pages work fine. However the View and Restore options fail.

From the log it produces in OWA I can see its makes a 503 on trying these, however the Restore and retrievals both work from Outlook 2007 for the same user.

I can see the Shopping baskets being built when trying the view or restores.

Any tips?

Dave