thanks for showing me that.
it's odd, i like to tweak most things until it hurts - but i've always been happy with my mouse at default settings, even though i game a lot - my, i do believe i've killed you a few times, stormy
personally i'm happy with the sensitivity, and i can change it with a little button on the mouse, but i generally don't bother.
my mouse only had two extra buttons (one on each side), and these work as forward/back keys by default in lots of other progs like browsers and movie players.
the report rate setting might be useful. i think windows 7 runs mine at 500. doubling it may help - but is that hardware dependent?