I am running EV 8.0.2 with Exchange 2007 SP1. The Archive Explorer button works ok in OWA both internally and externally, but, the Search Vaults button does not work properly externally nor internally. When I hit the Search Vaults button I get a security warning : "Do you want to view on the webpage content that was delivered securely? This webpage contains content that will not be delivered using a secure https connection ...." If I hit OK, the web page is cancelled, if I hit No, the I' m taken to the proper search page. this is using IE8. I get a similiar security warning using IE7. How can I resolve this problem? Thanks.