INT 60 - Nabbit v2.0 - (NOT A VECTOR!) - INSTALLATION CHECK

Program: Nabbit is a shareware resident screen data grabber by RSE Inc.
Range:	INT 60 to INT 66, selected by searching for first free vector
Note:	the Nabbit installation check consists of testing whether the
	  interrupt vector points at the ASCIZ signature string "iG"
	  (69h 47h 00h)