Hi, here is the output from gdb and the bt:
Starting program: /usr/local/bin/xscanimage Gtk-CRITICAL **: file gtkobject.c: line 1163 (gtk_object_ref): assertion `object->ref_count > 0' failed. Gtk-CRITICAL **: file gtkobject.c: line 1173 (gtk_object_unref): assertion `object->ref_count > 0' failed. Gtk-WARNING **: invalid cast from `(unknown)' to `GtkObject' Program received signal SIGSEGV, Segmentation fault. 0x400f4ee4 in gtk_range_timer_1st_time () from /usr/lib/libgtk-1.2.so.0 (gdb) bt #0 0x400f4ee4 in gtk_range_timer_1st_time () from /usr/lib/libgtk-1.2.so.0 #1 0x401b6c23 in g_timeout_dispatch () from /usr/lib/libglib-1.2.so.0 #2 0x401b5c46 in g_main_dispatch () from /usr/lib/libglib-1.2.so.0 #3 0x401b6273 in g_main_iterate () from /usr/lib/libglib-1.2.so.0 #4 0x401b643c in g_main_run () from /usr/lib/libglib-1.2.so.0 #5 0x400ce76c in gtk_main () from /usr/lib/libgtk-1.2.so.0 #6 0x0804fd76 in interface (argc=1, argv=0xbffff714) at xscanimage.c:1824 #7 0x0804fe50 in main (argc=1, argv=0xbffff714) at xscanimage.c:1862 #8 0x403517ee in __libc_start_main () from /lib/libc.so.6 Hope it helps to find the reason for the strange behavior. Regards Per