The concern is that under these conditions it is impossible to use the setup program: it is installed without the proper driver, it does not. I contacted customer service Technology EC, but did not give me solution, and apparently you do not recognize or understand the problem. It is always possible to configure the mouse by booting another system where the driver will work (32 bit XP in my case), fortunately the mouse memorize settings when you reboot, but it is somewhat tedious, and if ECT wants to play in the course of the great, they should seriously consider investing a few hundred dollars for a digital certificate allowing them to sign their drivers (I am not speaking here of the Microsoft WHQL certification).
Otherwise the device is comfortable, medium which suits me perfectly, quite heavy but not too much, the manufacturing looks solid, and we'll see the use if it will hold out at least a year, as j 'have intensive use, and my last mouse (Microsoft Comfort Mouse 4500 and Logitech) have dropped me after this period. The button to change the dpi is useful in case of need, and the lighting is a superfluous gadget funny but for me, it is disabled and is glad that it is possible, otherwise I would not have bought this mouse .
If ever EC Technology publishes a driver that can run on my system, I will put 5 stars no problem, especially given the very competitive price of the product.
