I loaded the map version 2011.20 and tried entering both addresses on Kincord Ct. and Buttonwood Run and nothing was found. I then browsed the the map and drilled down and nothing was found in the area. You see exactly the same map the I posted in this link.
http://www8.garmin.com/cgi-bin/mapge...229&smap.y=111
So the bottom line is that you are going to have to wait until the next release and hope that it is there.