In the Options dialog (gotten by typing OP or CONFIG), on the Selection tab, uncheck "Associative Hatching".
Or you can subract 2 from the PICKSTYLE system variable - 0 and 1 mean Associative Hatching off, 2 and 3 mean Associative Hatching on. (0 and 2 mean Group Selection off, 1 and 3 mean Group Selection on).