When I attempt to open Thunderbird on my Windows 11 computer, it appears to open and download messages, but it only opens to the task bar. I am unable to view email messages. If I right click on the task bar icon I can open the write new message or address book to open on the screen, but the main window will not open. I have tried to modify properties, uninstalled and reinstalled the program, etc. Nothing works to open the program to the screen. The program is working fine on my other Windows 10 computers and worked fine on the Windows 11 computer until two days ago. Any assistance would be appreciated.