Comment #2 on issue 443 by elias.ku...@gmail.com: XMonad should guard against resizing window dimensions to 0 http://code.google.com/p/xmonad/issues/detail?id=443 I originally only tested with floating windows (mod-right-click resize requires them anyway), but the "bug" manifests with tiled windows too. Not always but should after a few tries at making a window have zero-width. I tested the patch using the latest xmonad from darcs. It seems that the issue with bug 407 is not related to passing zero dimensions to some windows. AIUI, the patch only fixes some overflow errors but will still happily permit "legitimate" zero-dimension resizing. I tried to test the Hinted layouts too but I got into various troubles with xmonad and don't really have to go any further with them atm. To summarise: 1. floating windows do seem to have this probably with zero-dimensions even with the patch. 2. I haven't tested the hinted layouts so I don't know if they prevent this problem.