Just purchased an iMac. Have been using Intel/Microsoft OS since 1983. Got tired of Microsoft crappy OS and am tired of building my own machines, etc. OK, here is my problem. I can't get MobileMe to acknowledge my email accounts. It thinks the incoming mail server (mail.hughes.net) certificate is invalid. I have checked both the incoming and outgoing server names for HughesNet and both are correct. Moreover, while MobileMe accepts the incoming and outgoing mail servers for my Yahoo account, no mail is coming into MobileMe from that account. Any suggestions?