I do not get any of those issues with mine. I have had mine for about six months now, and have to admit that I love it. I am not a fan of Razer products at all, so I went with the Logitech version. The 12 buttons, plus 12 more with the G Shift is very nice. You can have anything you do not use much bound to the G Shifted buttons, like food, your mount, or w/e you do not use much and use the original 12 for some cool downs or something. Gonna say I love the mouse though, for sure.
