Hi there TSB14883,,,,
First of all ,, could please inform me if the user is using the Lotus notes client or the web access ( Inotes)???
Secondly,, please refresh then replace the design of the user mailbox to ( mail7.ntf)
Finally,,, check this case for an answer please
http://www-01.ibm.com/support/docview.wss?uid=swg21088362Best Wishes