I can't call up popup like I used to, via an acpid script. I can call up anything else I tried such as term or aplay, but just popup does not work when called from an acpid event script. popup works fine in any other situation I tried such as calling from a terminal.
snippet from my acpid script: (aplay works, popup does not; it worked in the past)
*)
aplay /home/tc/.sounds/blip.wav &
popup $1 &
;;
esac