[ SOLVED ] Linux 5.2 window manager

[Moltke]

All Gui's have a window manager. It is the thing that creates and destroys windows.  It also enables windows to overlap and minimize.  Some thing is causing windows to close without user input.

A window manager is the thing responsible to draw GUIs, GUIs don't have window managers, desktop environments do; KDE, XFCE, LXQT, Cinnamon, Budgie, LXDE... and there are stand-alone window managers too; awesome, openbox, enlightenment, i3, icewm...

I start programs from the main menu, from the Task Bar and the File Manager. 

So it is a file manager issue.

This is system wide and universal. It appears that they end up in the task bar. They can be manipulated from the task bar so the windows are not closed just HIDDEN from the view main port.

I'm not sure whether I understand what you're trying to say here. Can you post a screenshot?

[jim]

All Gui's have a window manager. It is the thing that creates and destroys windows.  It also enables windows to overlap and minimize.  Some thing is causing windows to close without user input.
I start programs from the main menu, from the Task Bar and the File Manager.  This is system wide and universal.
It appears that they end up in the task bar. They can be manipulated from the task bar so the windows are not closed just HIDDEN from the view main port.

[Moltke]

Installed this version about 2 month.  The problem is this, the window manager will only allow one window  at a time.  If I open a spreadsheet and select File/Open.  The Open File dialog opens and the Main Window closes, when the Open File dialog closes the main window opens.
Any help would be appreciated.

What do you mean "window manager"? Linux Lite doesn't have a "window manager", it's DE, XFCE4 does though, it's xfwm4 https://docs.xfce.org/xfce/xfwm4/introduction How do you open the spreadsheet? LibreOffice Calc? Is it a LibreOffice Calc issue? Or a file manager, Thunar, issue?

[jim]

Installed this version about 2 month.  The problem is this, the window manager will only allow one window  at a time.  If I open a spreadsheet and select File/Open.  The Open File dialog opens and the Main Window closes, when the Open File dialog closes the main window opens.
Any help would be appreciated.