icewm 1.3.6-1 won't shutdown

[ibidem]

Binary package hint: icewm

(Lucid Lynx, 10.04)
IceWM 1.3.6-1 (current) won't let me shut down or reboot from the logout menu
I've set the shutdown and reboot commands, configured sudo to automatically authenticate, and tried everything else I could find.
preferences contains the following:

#ShutdownCommand=”roxterm sudo halt”
ShutdownCommand="sudo /sbin/halt"

#RebootCommand=”roxterm sudo reboot”
RebootCommand="sudo /sbin/reboot"
ConfirmLogout=0

With ConfirmLogout=1 it is the same.
I saw no terminal with roxterm in there.
It appears that for whatever reason, the shutdown command is not being executed.