Ok, I recently bought a new wireless keyboard mouse combo by microsoft. After a bit of trouble getting them to work, and being forced to use USB for the mouse, I get them both to function within acceptable margins. But the optical mouse has the strangest bug, when I move the mouse quickly across the mouse pad it moves in the direction I move it, but then will double back as if I had reversed directions, then reverse directions again and continue to follow my intended movement. For working purposes this isnt too much of a problem, however I do enjoy playing games, and in a first person shooter this can be very annoying since when I try to turn right or left quickly will result in me just shaking my view left and right and ending in the same direction I was facing. The mouse pad I am using I have had for a long time now, and worked without incident with a previous cordless optical mouse by logitech. So yea, I'm confused. Oh yea windows ME is what I'm running.