Something weird is happening with Mail.app and I'm not sure where to look for answers. Yesterday morning I sent an email to a group of friends. In the afternoon I sent an email to a client and she was suppose to reply to it within five minutes. (lots of emails coming and going in between) After about 20 minutes I caller her to say I hadn't received her email approval yet. She claimed to have sent it but that she would do so again. While I'm waiting I notice that my buddy has replied to the message I sent that morning (he actually did a reply all to everyone I had sent mine to). While reading his message I scrolled down and discovered my client's reply was part of the message from my buddy. Basically there was my buddy's message with his signature at the bottom then immediately below there was long headers followed by my clients reply. The long headers are from the message from my client and appear to be ok. Both my buddy and client use different ISPs. Any ideas how this could happen? I did receive the reply my client re-sent. This has happened to me twice but only since I've upgraded to 10.3.9, the first time was with two different people. At the time I just wrote it off as a fluke but after this second time I'm not so sure. Mark Des Cotes Systems Manager/Graphic Designer Astro Printing Service (Cornwall) Ltd. 3308 Second Street East Cornwall Ontario Canada K6H 6J8 T (613) 932-9281 Ext 106, F (613) 932-1052 www.astroprinting.com