Random logging out in Ubuntu 7.10?

As I was writing my latest post for this here blog Ubuntu decided to log me off for no reason! I lost my entire article and an e-mail I was writing. This is the second time it has happened to me and I must say, its not cool. This seems to be the only problem that I am having with Ubuntu right now and its annoying to say the least. I was just wondering if any of you out there have had or are having this problem right now? I am sure all of the Linux lovers out there are going to leave me a comment saying that its not Ubuntu’s fault but my own or the systems, either way this seems like a big bug to me.

Also on Ubuntu I will begin to beta test version 8.04 sometime this weekend and I will update you on all the things that I see as important. So if you would like to know any thing about the new version please leave it as a comment and I will make it a point to check it out!