I'm having the same problem in a clean install of Gutsy Tribe 3. unchecking apps->gnome-power-manager->general->use_profile_time does fix the problem for me.
I'm attaching a screenshot that demonstrates the problem pretty clearly. I ran the acpi program and also pointed at the power manager icon so you could see the different responses.
I'm having the same problem in a clean install of Gutsy Tribe 3. unchecking apps->gnome- power-manager- >general- >use_profile_ time does fix the problem for me.
I'm attaching a screenshot that demonstrates the problem pretty clearly. I ran the acpi program and also pointed at the power manager icon so you could see the different responses.