So it seems for any map I download, when I render it, on and only on the large cities, I get this freaky gap (see attached photo) at the bottom edge for each one in region mode. The problem does not happen for Medium and small cities. The prepackaged maps of NY and Berlin (which have at least one large city) look fine, so I'm suspecting its a problem with the rendering tool. I tried software instead of hardware rendering to no avail. It seems playable in that when I go into one of the cities and hit reconcile edges, it says all is fine, it just looks hideous in Region mode. Also, I'm using SimCity 4, Deluxe Edition. Any thoughts, knowledge on how to solve this?