OK. So from yesterday, when I check my mail.app I can see a summary of new mails I have received. However when I open (or preview) them the app displays a blank message, together with a forwarded message from 14 months ago. Like this... */ From: Joe Bloggs: Date: Today Subject: Joe's news (forwarded message) ---------------------------- From: Somebody Else Date: August last year Subject: Somebody else' news Text from a mail writen by somebody else to me over a year ago /* end of example More details: 1. The rogue (forwarded) mails appear to be sequential i.e they all happen to be from August 22nd 2008, appearing subsequenelt in time and date order 2. When I view my mail in either mobileme or thunderbird, the correct messages are displayed. Clearly mails on the mail server are therefore correct. So the problem must be with the mail.app right ? I didn't make any changes to my mac. This issue appeared to start all by itself. So... What is going on with the mail.app and what can I do to bring it back into line? I hope this makes sense and ope soemone can help me Thanks in advance.