I have a similar problem with my mouse, I have a Pilot Board Wireless Desktop set mad e by Kensington. It was working fine, until i installed Windows 7. I should be more exact, sorry my mosue works fine its the MMB that doesn't work i can t find any drivers to make it work and I would love to have this fix because i have a program that i constatly use it. So any help would be appreciated. and Thank You in advanced