Upon preparation for takeoff at the gate when I enter the runway info in the FMC I see the takeoff runway displayed on the lower display screen.  On approach when cleared for landing on a specific runway I in turn enter the runway in the FMC but that doesn't translate in a visible representation on the lower ND screen.  In version 1.4 this was not a problem and on days when visibility is low you could track a proper intercept path when default ATC gives you something less than desirable concerning a smooth transition to intercept the cleared runway.   I see the route and destination airport just fine but in 2.1 I'm no longer able to see the cleared runway come up on the lower ND screen.