Mac Mail


Mail version 2.0, OS x 10.4.2
Problem: Mail won't maintain the email in the inbox. I am using IMAP system. At home I retrieve mail from 4 different accounts and my main work mailbox gives me the most problems. I have the previous version install at work and don't have this problem. A lot of times the mailbox will indicate that I have mail, however nothing in the box will be new (or current). I have a 500 MB mailbox but seldom use over 150 MB. Also when I move to another mailbox, the work mail disappears. Sometimes rebuilding the mailbox will bring the mail back, however not all of it. I can use the "get info" command on the mailbox and see all of the mail, so I know it is there. Any clue?