Laptop linux

I got my Dell Latitude LS up and running, dual booting XP & RH9. The
only issue I have is that when in Linux, and press the power button, it
immedietly turns off. Just like you've pulled the battery. Kind of
annoying, since I have XP setup to go into hibernation when I press the
power button.

I have "apm=on" as a kernel command in GRUB, is there anything else that
I should have setup?
--
Take care,
Kitty