I have an entourage 2008 user on a Mac Mini running 10.5. His system seems to lose its connection to our Windows network overnight (everything else works--safari can hit the web, etc., but fileshares and Exchange won't reconnect). The only solution we've found is a reboot, but every single time he reboots his system for any reason, Entourage requires a full database rebuild/reverification. Has anyone else run into this? Should I just give it up and use MobileMe to sync his Outlook with Mac Mail, Contacts, and Calendar?