I am trying to cache the Seattle area. I set a max overall cache size to 10GB. I select the Seattle area around BFI at "High". I select "Cache New Region" and it briefly shows a screen saying "Downloading" but then that screen vanishes and nothing happens. I have tried it as well on medium and low but get the same result. I restarted the sim and went through that process again but was met with the same result. It does not appear to be downloading and nothing shows in the "Cached Regions" box. Am I doing something wrong? Seems plenty of folks are able to cache and I could not find anything about this via Google. Thanks. 

Never mind on the above. I thought seeing the grid meant that was the area it was to download. I missed the "paint" concept. That was a lot of work...