>I wanted to study the following position from a match between Falafel and
>On a Windows 7 machine, I copied the XGID, then fired up GNU and clicked
>on the "Edit" button. Then I pasted the XGID into the GNU window. The
>desired position appeared.
>Holding down the Ctrl key, I then used the mouse to "play" 33 by dragging
>the checker from the bar to the 22pt, then moving 21/18*/15/12, dropping
>the black checker at each intermediate step.
>Finally, I clicked on the White checker underneath the board to set White
>to be on roll. Unexpectedly, this caused the White and Black checkers to
Thanks to Michael Petch for his help. The build version that I was using
when experiencing the above behavior was 0.90-mingw 20100816. I have
now installed the 20111003 version and the problem has disappeared.