I ran two kinds of test:
(1)
Using multiwindow does not work:
XWin -unixkill -emulate3buttons -clipboard -multiwindow &
Using wmaker works fine
XWin -unixkill -emulate3buttons -clipboard -rootless &
wmaker &
(2)
I dropped the options using multiwindow, one at a time:
The first two still do not work:
XWin -unixkill -clipboard -multiwindow &
XWin -emulate3buttons -clipboard -multiwindow &
This works:
XWin -unixkill -emulate3buttons -multiwindow &
but I cannot even cut and paste between an X-window and a browser,
though I can cut and paste among the X-windows.
It seems that -clipboard and -multiwindow do not work together.
Lester