User blog comment:Talvi/Terraria Map Generation/@comment-4123347-20111024115735

I'm not sure how I could help other than saying that, when Terraria makes a new map, it tells you pretty much everything it's doing. If your PC is so powerful that you can't see what it's doing then I'd recommend you to create a map through the server utility - it's in a command prompt so you can scroll back to see everything.