Oh joy of joys... Take 1 part Mac OS X, and 1 part Norton AV, add a spam virused email, what do you get? Norton discovers a file (inbox.mbox) with a Windows virus and DELETES it by default... So your inbox empties... oh joy! There is a fix on Norton's website... IF you have NAV for Mac and get spam often, might want to make sure you are up to date...