I need help on connecting a palm treo 755p to my exchange server 2003 to be able to check e-mail as well as send e-mails. I know that I need to use Exchange Active Sync. I think the problem that I am having is that my security certificate is not valid. I just went to a server based network and so I don't know about certificates and how to obtain them or edit them. Is a security certificate something that i have to purchase or a text entry in the server? Please Help!