Problem with Messaging DroidX

Does anyone know why emails which show up in the inbox folders with the first few words of the email showing on the INBOX lose the body of the email when you actually open the email itself? I have a new DroidX and my emails only show the FROM and SUBJECT LINE when I actually open the emails that come into my gmail and yahoo folders. This did not happen yesterday and I haven't changed any settings. I am frustrated so far with the erratic push on the emails, too. I am new to the site and see others having push issues also and not getting timely email. If anyone knows why I can't see the body of the messages suddenly, I would love to hear a fix. Thanks.