I reloaded the topo usa 2008 from my home computer and everything looks fine when I pan around the map and zoom in on various areas. Although I'm not as impressed with the details in the map as much as the other topos. I live in the mountains and it doesn't show all the logging roads and trails like the other ones do. Now that I know it isn't my unit or my computer I may try to delete the software and reload everything and try it again.