#250 Desktops don't always get the correct desktop image.

[Steve Kelem]

I upgraded to Windows 11, and the screen backgrounds go out of sync with the desktop that I'm on. I had set up VirtuaWin as a 4x4 array. I had a separate background image for each virtual desktop. Now, in W11, after moving to different desktops, the images don't always match up with the desktops. Sometimes, for example, the image for desktop 15 shows up on 14. Others are off also.