I’ve installed several times on older BIOS machines and get the same results. At first install everything is fine. When i logout, reboot, or shutdown and reboot later i get duplicate icons on the mate taskbar for Menu, any quick-launch programs i have placed in the taskbar, and date/time. When i del one of these copies they both disappeear. When i put each one back into the task bar the problem is solved and doesn’t repeat itself. The icon group for network, battery status, etc are not similarly affected. No great flaw; just wondering whether others have experienced this. Maybe my info would be helpful to the @developers ? Thx.