Yes! I thought my cookies were off kilter, but it's been happening to me regularly for the past 2 days. Glad to know it isn't something I have to fix on this end.
Ive been getting the same problem, but only since yesterday, its not sonsistent, but it seems if i reboot my computer, 9 times out of 10 i will need to login again, good job firefox does the typing bit for me or it could become a nusance.
Just looked at the cookies and found two for purebasic, can remember the whole addresses but I know they were different, deleted them both and now I'm staying logged in.