- last post: 01.01.0001 12:00 AM PDT
does this happen when you're composing longer messages? It's probably related to your session logging out. The web server has a set time (let's say x minutes) that it stores your information, after which you'll be automatically logged out for your security.
One way you should be able to prevent this in the future is by pressing preview every few minutes as you compose your masterpiece. This will reset the timer, and you'll get another x minutes until you get automatically logged out.