Qcad has been open and moved to a secondary screen, and then stopped.
QCad reminds where it has been previously open.
But later when QCad is started on the same computer but with no secondary screen (at home for example), QCad opens outside the only available screen. One can move QCad window on the main screen by right click on the icon in the tabkbar, then move. But one then needs to remember where it has last been openned to move it in the right direction with the arrow keys of the keyboard.

Should not QCad check if the last saved coordinates are valid and enventually change them to a default size and position before starting. May be should it move to such a position when the size of the screen changes and the coordinates become invalid, after redefining the desktop for example?

Before this problem is solved this behaviour and the process to move the window back on the screen should be documented.