Any of you have scrolling issues with the mouse? I find that sometimes it doesn't want to respond... or it responds several times over and scrolls way the hell down or up, farther than I'd intended.
Also, there's something loose inside my M90, I can hear it shaking around from time to time....
I don't want to go back to the Death Adder though... I like aluminum bodies! D: Also I like the higher DPI....