Bladess

Movement seems strange and incosistant to me. I can press the left arrow, sometimes i move left, sometimes left and down. I press the up arrow, sometimes i move up, sometimes up and left, sometimes left. I try to move to a square that has somethine in it. Using the arrow keys i can walk arround the square 3 times but can never move into it. It is like the white bishop in chess, i can't get into the black square. Some times I can use a mouse button and get into