Hi there. Got this mouse recently, I believe it's somewhat around 2 months ~ kind of well made mouse, nothing extra, but well, handable, BUT I got this problem now. I bought specially for this mouse a QCK steelpad to get a better grip and precision and even though when i slowly move my mouse from bottom to top of the screen i DONT get a straight line, in some points pointer just get himslef a little bit left/right, then get himself back or not, same goes for right to left (and vica versa all of this) not moving straight again. Got all drivers/firmwares updated. I don't really get it. Anyone have this mouse and can somewhat help? Or some generall advice? Thank you my Lords and excuse my engrish.