OFF TOPIC - PC HELP NEEDED

[Steamtrains]

Over the last few days I've had to log-in every time to every site I visit, including BB. This even when I check the "Keep me logged in/Remember me" box that usually appears at the log-in window. What's going on..?? Before this, I would log-on once every now & then, but now it''s every time, and is VERY frustating.

I tried Microsoft's Help, but couldn't get any information that would fix the problem...How strange...

So I turn to you guys, knowing that you are more computer savvy than myself. Any help would be most welcome.

Thanks in advance....