You are selling mice brand new that you no longer support in software. And you keep shoving upgrades down my throat, when it breaks my mouse functionality, which is made worse because there's no onboard storage, yet I need this mouse because it's small, and your small gaming mice don't have tilt scroll wheel. You still sell the Logitech Productivity Mouse, so why aren't you supporting it in your current software? This is how you lose customers for life.