This must be some bug. Are you using default skin? If not, check r3987.
I can confirm this bug; using default skin. I can't get any information logged, but when I do check or uncheck the "Show preview pane" checkbox, the red display appears at the top saying "Server Error! (Not Found)" too.
Does this mean there might soon be a 0.4.2?
Ben _______________________________________________ List info: http://lists.roundcube.net/dev/ BT/aba52c80