https://bugs.winehq.org/show_bug.cgi?id=57198
--- Comment #4 from David dav75uk@yahoo.co.uk --- I also noted that after the restart the top few pixels of the window are on the external monitor which is arranged above the laptop monitor (where most of the window display). This being split between the two windows might be a clue to the behaviour (it's in the wrong place and being split between the two messes up the size calculation). I wonder if it's a similar issue horizontally if the monitors were arranged differently.