The Phanton, you should check your browser's security settings. It's probably set to not store cookies. In order for your browser to remember who you were logged in as, it needs to store what's called a cookie on your computer, this has your login data for this specific site (or any other that you log in to and ask to remember you, for that matter).
Some browsers are set to not accept cookies by default, but there's a little checkbox in your options somewhere that enables it.
doodstormer wrote:I've found that if you click on the Forum link multiple times before it loads, it will log you out.
Yeah it's weird, I noticed that too.