INT 2F U - Novell DOS 7 - GRAFTABL - GET FONT TABLE                             
	AH = 2Eh
	AL nonzero
Return: AH = FFh if installed
	    ES:BX -> graphics data (8 bytes per character from 80h to FFh)
SeeAlso: AX=2E00h,AH=23h"GRAFTABL"