INT 15 - HUNTER 16 - SET LOW POWER THRESHOLD                                    
	AH = 62h
	AL = level (00h 5%, 01h 10%, ... 12h 95%)
	BX = interval between power low warnings in seconds (1..600)
Return: AH = Status
Desc:	set the level (relative to full power) when power-low warnings begin
	  and the interval between the warnings
SeeAlso: AH=61h,AH=65h,AH=66h
                                                                                

INT 15 U - HP 100LX/200LX - SET DISPLAY CONTRAST                                
	AH = 62h
	BL = contrast (00h-1Fh, 1Fh is the darkest)
SeeAlso: AH=47h"HP",AH=61h"HP"