Okay so I was playing on solo this time, looking how 2A worked and what not... and as I was expanding my second City, I found a little black line on a tile... and I had grids off, so after looking at it closely I noticed it was kinda like the tile was sunk in on a small part, after taking a screen shot and using Dxdiag and getting the debug file copy and pasted the game crashed, but eh that wasn't really part of the bug... I think... anyway heres the  screenshot and the other files, I hope it helps. :3

http://pastebin.com/embed_js.php?i=fFBdPeEL

So apparently the debug.err just doesn't wanna paste onto any text hosting even pastebin... anyone know any workarounds to get it to go up?