please please please help if you can....

Ok i am trying to get entourage to pick up emails from a new server we just switched all the info from one server to another and now i have to get entourage to grab emails from the new server. problem is when i go into entourage and switch ip address from old server to new server entourage gives me the message.... "An Error (-50) has occured." I really need to get these switched over so these people can get back to doing their work so if you can help PLEASE do, any more info needed just ask. Thanks in advance any help even just telling me what is causing this error would be extremely helpful, Dustin.

It would be helpful if you could explain what a '-50' error code implies; having few Windows users and, logically, less entourage users means that in all likelyhood the only help you'll be able to get will be general and not program-specific.