Mail Sending Messages Before They Are Complete!

Hey guys, I've had numerous problems with Mail in 10.6.1 (see below) that I never had with 10.4, but this problem is the worst! Mail is sending my messages to their recipient before I finish fully typing the email, so the recipient receives an email that cuts off in mid-sentence! What the heck is going on and how do I fix it?

Just FYI, here are the other Mail OSX 10.6.1 issues I have had:

1) I had all kinds of problems syncing Mail with Gmail using IMAP. One of them was I would move messages into a separate folder in Mail, Mail would sync with the Gmail server and create the folder and move the messages, then Mail would go back and retrieve all the emails I had moved and replace them in the old folder!

2) I had a problem where the mailbox archive feature was only archiving some of the emails in a mailbox, so out of 400 messages, for example, the completed archived mailbox would only have 50 of them.

3) There's a useful feature the previous build had that got lost. When you attach a picture, then want to attach another one, it makes you find the folder from scratch again instead of opening up the last folder right away.