Comment 1 for bug 900784

Hi, Holger and welcome to Launchpad!

Confirmed. I would assume this affects all operating systems, not limited to OSX.

A workaround exists though. At least in Ubuntu you can hold down the "alt" key, then click and drag anywhere in the window to move it. This allows the window to be move no matter where it is clicked, opposed to being limited to just when the title is selected. So it is at least possible to revert it to some sane resolution at least. For other operating systems you may have to edit the .widelands/config file.