persistent screen saver problem

[Charles Jones]

I have a CentOS laptop that is running firefox in kiosk mode (which 
rotates various system displays and metrics). I'm having problems 
disabling the screen blanking. Not only is it blanking the screen, but 
some time after that is does a DPMS powerdown of the display as well.

So far I have tried:
Disabling the screensaver
Disabling power management
Verified that apmd is not running
xset s off
setterm -blank 0 -powersave off 0powerdown 0
checked the BIOS for any power management stuff in there

None of it had any effect!  Any suggestions?