The classic controls behave strangely, especially if clicking both mouse buttons at once. What can I do?
This happens usually if your X-Server is configured to emulate a 3 button mouse. Check your X11 configuration file (usually /etc/X11/xorg.conf
) for the entry emulate3buttons
. If it is set to "yes", please change it to "no" and restart your X-Server to correct this behaviour.