Yeah, the forums has some bizarre features... one of which is the log in issue. Sometimes, I hit the remember me button and it keeps me logged in for 2-3 weeks with no problem, I clear cookies, and I have to relog in (how it's suppose to work!)

Other times I go through stretches where I have to re-log in every single time I come into forums...

Some common problems:
1. You cleared cookies since you last came into forums. Some puters clear them automatically when you close your browser. Check the settings.
2. You can log in, but a "you have a PM" window pops up, you click into that... sometimes that messes with your "remember me" cycle the next time you log in.
3. Did you accidently forget to click the remember me button the last time you were in?

If none of these work, come find me and I can teach you the "Log in Dance"....