With regards to the below and all those threads concerning session timeouts and lost server connections, I've just encountered a new scenario:
Opened mail in a new window (using the "gear-wheel" button, selecting "Open in new window"), clicked the reply button, started to compose the message, after a while wanted to look up something in another message and switched back with Alt+Tab to the main window, selected a folder, and got: "Serverfehler! (Forbidden)" Selected a different folder, the same again. Selected a different folder, the same again. And so on...
See screenshot attached.
These things are really driving me crazy.
I should note that I have NOT applied the patch related to http://trac.roundcube.net/ticket/1488429 yet. Is it supposed to help in this respect?
