I have m560 mouse, the application ID my mouse asked me to turn it off then back on then said we couldn't find your device, your support is the worst by far you should support your devices as long as it is in the market and people using it today. i WILL NEVER BUY A LOGITECH PRODUCTS AND I WILL TELL ALL MY CUSTOMER(IM PC TECH) NOT TO BUY ANY LOGITECH PRODUCTS AND I WILL MAKE SUREANY REVIEWS I WILL TELL THE TRUTH ABOUT LOGITECH AND TELL THEM STAY AWAY FROM YOUR COMPANY,