Changed xnview.ini value causes menu-bar in fullscreen

[lawndart]

The following xnview.ini values got mysteriously readjusted causing
menu bar to appear in full-screen mode (800x600 desktop resolution):
Width=799 changed to 800 *
Height=572 changed to 600
X=0 changed to 2
Y=0 changed to 1

*Its the 800 value instead of 799 which causes the menu bar to
appear full-screen.

I don't know what caused these values to be reset this way.

[xnview]

The following xnview.ini values got mysteriously readjusted causing
menu bar to appear in full-screen mode (800x600 desktop resolution):
Width=799 changed to 800 *
Height=572 changed to 600
X=0 changed to 2
Y=0 changed to 1

*Its the 800 value instead of 799 which causes the menu bar to
appear full-screen.

I don't know what caused these values to be reset this way.

When xnview reset these values?

[lawndart]

So far, I have not been able to recreate when values are reset.

Rarely, values can be set manually to exactly 800x600 if windows
start-bar is not 'always on top' and Xnview window is readjusted
in view mode. This can cause window frame to appear in full-screen.