Chris, about the memory leak you mentioned: I wonder if it affects tileset size. You did say that tilesets can be of any size and dimension, but I noticed a loading time on Windows XP. maps take between 8-10 seconds to load using my large overworld tileset, while underground maps that use my smaller dungeon tilesets load much faster. Could this be due to the memory leak, or is this simply a windows XP /32-bit issue?