Viking offensive left tackle Bryant McKinnie returned to the practice field Thursday after spending the first 4 weeks away from the team for violating the NFL's personal conduct policy.  McKinnie was involved with a fight outside a Miami nightclub months ago.  He says he'll make better decisions as to who he hangs out with and what he does when he's out at night.  McKinnie returns but middle linebacker E.J. Henderson will likely miss the game Monday night at New Orleans with 2 dislocated toes on his foot.  Henderson and the Vikings are waiting for the swelling to go down on the toes before they know when he'll return.