Steps:
0) Use a multi-head setup with a GdkDisplay comprising at least 2 GdkScreens
1) Compile aisleriot with CPPFLAGS+="-DENABLE_DEBUG_UI" .
2) Start aisleriot
3) From "Debug" menu, choose "Move to next screen"

Results:
CRASH!

(sol-clutter:4596): Gdk-CRITICAL **: gdk_colormap_new: assertion `GDK_IS_VISUAL (visual)' failed

(sol-clutter:4596): Gtk-CRITICAL **: gtk_widget_set_colormap: assertion `GDK_IS_COLORMAP (colormap)' failed

Gdk-ERROR **: The program 'sol-clutter' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
  (Details: serial 2109 error_code 8 request_code 1 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

(gdb) where

+ Trace 215290