is anyone else having a login problem?

ok, this is going to be short and sweet.

i read dailykos from my home computer and the computer at my desk in my office.  the last few days, when i fire up my browser and bring up dailykos.com, i find that i haven't stayed logged in.  i've been having to re-login every time i get to the site for about 3 days now, and i'm wondering if someone on the business end of things is resetting something.  (i'm sorry i'm not more articulate in the necessary password/cookie/security terms.)

am i imagining things, or was this a problem a few months ago when there were concerns about accounts being hijacked?  anyway, advice would be appreciated, or just an acknowledgment from someone in the know.  thanks!