I tried downloading the USA East map onto my device, it seems installed, since I can use it, but when I try to search for an address, it keeps coming back to me as address not found, more like "Can't find (number), try (same number) instead?". I also tried zooming down all the way into the map, I can't see any local roads at all.

Is it that my maps are corrupted or something? My Canada map works fine.