The MX Master 4 gets new functions. However, Logitech does not rectify points of criticism such as the low polling rate.

Though the operating system is over 10 years old, Windows XP is still used in a number of workplaces that did not see an advantage in upgrading to Windows Vista or Windows 7. Though official support ...

Hope this is in the right forum.<BR><BR>Just picked up a Logitech QuickCall USB speakerphone, and I'm itching to try it out.<BR><BR>My machine on which I want to use it is running Windows 7 x32 RC.