Hi, David, I can reproduce this problem if GTK assertion enabled. (Change `enable_ev_gtk_log (0)' from GTK EV_APPLICATION_IMP.make to `enable_ev_gtk_log (2)'.) I made SD_TOOL_BAR_DRAWER_IMP only drawing things when the widget is displayed in revision#69360. Then this problem is fixed on my Solaris. Could you check if this bug still exists on your Solaris? Thanks Larry