Does Fluther log you out automatically?

since I’m not on a shared computer, I save my name and password so I don’t have to type them in every time. Ever since I joined fluther (just a few days ago) I was able to come straight into my account by finding the site in my “favorites” (using IE7 on a WinXP system). Today I was asked to log in for the first time. Is it like yahoo, where you have to retype the info every 2 weeks?