[don-o]

I bet you’re accidentally logging out and not realizing it.

Nope. I just got back on, mashed "home" and was presented with the need to log in.

[BlueDragon]

Although as you've said --- you are not deleting cookies ---- perhaps take a look and see if cookies, or else browsing history is being deleted automatically?

In firefox one can go to browser menu--->options--->privacy--->remove individual cookies. Click on that to open a window which will show if you have any cookies.

Geez. Things used to be simpler.

Wait until no one is looking.

Use a chair or a step stool.

Climb up, remove cookies.

replace chair or step stool. (and check for crumbs--do not leave a trail...don't ask how i know this)