I'm not sure what happened, but I couldn't log in earlier. I closed my browser, and came back an hour later and can now log in. I never check the "remember me" box (or whatever its exact wording is).
I'm not complaining, just wanted to let someone know this happened. I always figure that the more information one has, the better when trying to solve a problem like this. Maybe it's intermittent?
Thank you for working on this problem that seems very challenging... and frustrating for you I'm sure!