INT 11 - Blank-It Screen Blanker - GET BLANKING TIMEOUT                         
	AX = 0225h
	BX = 6904h
Return: CF clear if successful
	    BX = timeout (see AX=0225h/BX=6901h)
	CF set on error
	    AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6901h
Index:	screen saver;Blank-It