Forum not remembering me?

[Siaea]

I don't know what it is, but on this computer (one of my home computers) I have to log in every time I hit this site lately. If I click "Login", and type the first letter of my login (Siaea), Firefox fills in the rest, but I have to do that every time. This has only started recently. Anyone know what I could have possibly changed?

Edit: That's not annoying so much in itself, but I don't get the "Latest posts" link when I have to do that...

[moosejaw]

Is something wiping the cookies? There is also the remember me checkbox by the login space.