On Sat, Feb 2, 2013 at 4:00 PM, zeljko <zeljko at holobit.net> wrote: > No, but we know root of problems for now. > Gtk2WSForms.pp, line 168, GDK_CONFIGURE. This does not explain why it happens with QT and Windows bindings, too. Reading the bug report, Vincent got the problem on Windows. Anyway, it was not an uninitialized variable after all. Juha