This crash is related to the first update we received in the afternoon, I just noticed there was an update when I reloaded the game. As the title says, I went and saved some changes I made to a tile I was working on, which was the first one I've been working on and crashed. I managed to save it without problems a few times before.
DXDiag: http://pastebin.com/wj2zmtWY
Debugerr: http://dl.dropbox.com/u/8088480/debugSavingTile.err
Zip:http://dl.dropbox.com/u/8088480/Elemental0_98-2010-07-29T18-29-24-593.zip