How can I fix this error???

Hi, everybody. Before this error appear I use Gtk1.2 and I update my Gtk to 2.0.9 and complie and run my program again this error appear. Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap", and my icons, scrollbar, button and etc. are disappear. How can I fix it??

gtk_text_view / gtk_text_buffer

Hi, (Using GTK2+) I'm trying to insert a (fixed) multi-line text into a gtk_text_view using gtk_text_buffer_insert() My problem is that only the first line is displayed. When I click in the gtk_text_view field the field expands and I can see all my inserted text lines. How can I force all