I play Apple chess every now and then for a quick game. I'm rubbish, I've only ever beaten it once in my life, but I do know what the rules are. Just now, it made a pawn diagonal move without capture! (note: Normally pawns move straight forwards. They can only move diagonally when they make a capture. There was no capture in this case.) I'm gobsmacked - is my PowerBook behaving like a frustrated 5 year old child? The log is below, and I can also send the savegame if you PM me. Has this happened to anyone else?