Version: 1.11.4 (using 4.2.4 (KDE 4.2.4), Kubuntu packages) Compiler: cc OS: Linux (i686) release 2.6.28-15-generic Normally Kmail or Kontact minimize in the systray after closing (ALT+F4), if in <appearance><systray> "show kmail in systray, if unread messages exist" is active. After updating kubuntu to KDE 4.2.4 this feature doesn't work any more. Now ALT+F4 have the same effect like STRG+Q.