That was me that made that post. You can't up the DPI on the m510. It's 1000 dpi only. Don't let that low dpi steer you away from it though, it's a great wireless mouse for the XIM - you just have to crank the sensitivity up, i think for black ops i use ~85 sens for hipfire and ~135 for ads (might have those backwards). There are not many high dpi wireless mice. Off the top of my head I can think of the razer mamba but it only works in wired mode for the xim. wireless doesnt work. If you have any other questions about the m510 just ask away.