I am using version 0.91 of Start 11 on my Home Theater PC, which a new build (about two months old and very stable) with a clean install of Windows 11. When I have Start 11 installed and I open JRiver Media Center 28, the cursor just flies all over the screen, then settles in one spot at random. As soon as I touch the mouse again, off it goes. If I uninstall Start 11, Media Center and mouse work as they should. At first I thought it was mouse batteries but no joy there. I even tried a couple different mice. Anyone else seeing this?