I got the same mouse a while back. I downloaded the Cooler Master Masterplus (per. only) v1.8.2 software as directed in the CM downloads section of the mouse. Installed, started the software and got some firmware updates for the mouse. After that starting the software does nothing but spin the hourglass icon for a few seconds. I think the software is supposed to provide a graphical user interface where you can set up the DPI and maybe do some macros or something, but it isn't happening.