--- thumbwheel.c.orig	2009-05-17 00:24:07.000000000 +0200
+++ thumbwheel.c	2009-12-09 16:23:51.000000000 +0100
@@ -50,7 +50,8 @@
 				 long        data  FL_UNUSED_ARG )
 {
      FD_twheelform *fdui = ( FD_twheelform * ) ob->form->fdui;
-     int n = fl_get_select_item( ob )->val;
+     /* int n = fl_get_select_item( ob )->val; */
+     int n = fl_get_choice( ob );
 
      fl_set_thumbwheel_return( fdui->vert, n );
      fl_set_thumbwheel_return( fdui->hor, n );