Just purchased a Microsoft Wheel Mouse Optical USB/PS2. I have it connected to my PS2 port. During normal use or even playing a game, the pointer on the screen travels in any direction except the way I want it to go and will sometimes freeze at that position for a few seconds...pretty annoying when trying to play a game. Any one else has this problem and how did they get rid of it? By the way, I just purchased his mouse a month ago. I am running Win Me on a 1.2 Athlon with 512 Meg of memory.