The original poster stated they were using WIndows 11..  Not a MAC with WIndows 11 virtual. If you are talking about coherent vs full screen, it indicates you are offering a solutuon for MAC users. Thats great, but this poster had the issue on Win 11 I do believe. I have the same issue and freeze just as home base is loading, and it is some type of window movement, appears like the window is attempting to go full screen, or at least larger. It is at this point the top bar goes grey and the window maximize, minimize and close are all non-responsive. Uninstalled, reinstalled, cjhose NOT to transfer prior year clients and it worked fine. Once prior year clients were transferred, and there were entries in homebase the issue is encountered.  Attempted run as admonistrator, no luck. Set the properties to open in maximized window, no luck. Added https:*.intuit.com as a safe site, no luck.  Still invetigating.