Review on Renewed Logitech MX ERGO Advanced Wireless Trackball for Windows PC and Mac by Jeff Olson

Firstly it wasn't plug and play with win7. I had to adjust the cursor speed in windows which caused the cursor to be very slow on boot. he then had the ball under control, so he was useless for games. I figured I'd have to download the Logitech software to fix this. I downloaded the latest version from the Logitech website. From that point on I had no more functionality. It blocked all trackball functions completely, even during boot and login. I've been a Logitech fan for 20 years now and love their products - this is the first time I've come across a useless Logitech device. Any suggestions before I put it on ebay?