Description of problem:

Clearlooks (and Bluecurve) crash GIMP when GIMP's main window is moved to the
second screen and the Display subpage is opened in the Preferences.

Version-Release number of selected component (if applicable):
GTK+ 2.8.11 (gtk-2-8 branch built 2006-01-20).
gtk2-engines-2.6.3-2

How reproducible:
Start GIMP (CVS HEAD 2006-03-05), move the main toolbox to the second screen and
open up the GIMP preferences. Then select the display subpage. 
  
Actual results:

#0  0x00291df6 in gdk_x_error () from /home/drc/next/lib/libgdk-x11-2.0.so.0
#1  0x00414323 in _XError () from /usr/X11R6/lib/libX11.so.6
#2  0x004149f1 in _XReply () from /usr/X11R6/lib/libX11.so.6
#3  0x0040f483 in XSync () from /usr/X11R6/lib/libX11.so.6
#4  0x0040f519 in XSync () from /usr/X11R6/lib/libX11.so.6
#5  0x003f4ae2 in XCopyArea () from /usr/X11R6/lib/libX11.so.6
#6  0x002842a5 in gdk_x11_draw_drawable ()
   from /home/drc/next/lib/libgdk-x11-2.0.so.0
#7  0x0025e03e in gdk_draw_drawable ()
   from /home/drc/next/lib/libgdk-x11-2.0.so.0
#8  0x00268dac in gdk_pixmap_draw_drawable ()
   from /home/drc/next/lib/libgdk-x11-2.0.so.0
#9  0x0025e03e in gdk_draw_drawable ()
   from /home/drc/next/lib/libgdk-x11-2.0.so.0
#10 0x00273d4a in gdk_window_draw_drawable ()
   from /home/drc/next/lib/libgdk-x11-2.0.so.0
#11 0x0025e03e in gdk_draw_drawable ()
   from /home/drc/next/lib/libgdk-x11-2.0.so.0
#12 0x004bb504 in clearlooks_rc_style_register_type ()
   from /home/drc/next/lib/gtk-2.0/2.4.0/engines/libclearlooks.so
#13 0x00d86870 in gtk_paint_option ()
   from /home/drc/next/lib/libgtk-x11-2.0.so.0
#14 0x00d55ba0 in gtk_radio_button_draw_indicator ()
   from /home/drc/next/lib/libgtk-x11-2.0.so.0
#15 0x00c6e361 in gtk_check_button_expose ()
   from /home/drc/next/lib/libgtk-x11-2.0.so.0
#16 0x00d2644e in _gtk_marshal_BOOLEAN__BOXED ()
   from /home/drc/next/lib/libgtk-x11-2.0.so.0
#17 0x002cd6e9 in g_type_class_meta_marshal ()
   from /home/drc/next/lib/libgobject-2.0.so.0
#18 0x002cdd4d in g_closure_invoke ()
   from /home/drc/next/lib/libgobject-2.0.so.0
#19 0x002dd463 in signal_emit_unlocked_R ()
   from /home/drc/next/lib/libgobject-2.0.so.0
#20 0x002de622 in g_signal_emit_valist ()
   from /home/drc/next/lib/libgobject-2.0.so.0
#21 0x002dec29 in g_signal_emit () from /home/drc/next/lib/libgobject-2.0.so.0
#22 0x00e13ff6 in gtk_widget_event_internal ()
   from /home/drc/next/lib/libgtk-x11-2.0.so.0
#23 0x00c9791a in gtk_container_propagate_expose ()
   from /home/drc/next/lib/libgtk-x11-2.0.so.0
#24 0x00c97971 in gtk_container_expose_child ()
   from /home/drc/next/lib/libgtk-x11-2.0.so.0
#25 0x00c5a500 in gtk_box_forall () from /home/drc/next/lib/libgtk-x11-2.0.so.0
#26 0x00c95cab in gtk_container_forall ()
   from /home/drc/next/lib/libgtk-x11-2.0.so.0
#27 0x00c976a1 in gtk_container_expose ()
   from /home/drc/next/lib/libgtk-x11-2.0.so.0
#28 0x00d2644e in _gtk_marshal_BOOLEAN__BOXED ()
   from /home/drc/next/lib/libgtk-x11-2.0.so.0
...

Quote from Sven Neumann: "the error is that the theme engine doesn't release /
reacquire the graphics contexts and/or pixmaps on screen changes"