Greetings:<br><br>I have been receiving this same error since gtk-2.19.x.  i was hoping that it would get resolved, but then I was thinking, what if no one else get it?<br><br>Here is my error from the terminal window...<br>
<br>Gdk-ERROR **: The program &#39;gramps.py&#39; received an X Window System error.<br>This probably reflects a bug in the program.<br>The error was &#39;BadWindow (invalid Window parameter)&#39;.<br>  (Details: serial 21699 error_code 3 request_code 20 minor_code 0)<br>
  (Note to programmers: normally, X errors are reported asynchronously;<br>   that is, you will receive the error a while after causing it.<br>   To debug your program, run it with the --sync command line<br>   option to change this behavior. You can then get a meaningful<br>
   backtrace from your debugger if you break on the gdk_x_error() function.)<br>aborting...<br>Trace/breakpoint trap<br><br>Sincerely yours,<br>Rob G. Healey<br>