=== modified file 'src/nautilus-navigation-window-menus.c'
--- src/nautilus-navigation-window-menus.c	2010-03-29 11:32:07 +0000
+++ src/nautilus-navigation-window-menus.c	2010-04-19 13:16:55 +0000
@@ -163,6 +163,9 @@
 	window = NAUTILUS_WINDOW (user_data);
 	next_pane = nautilus_window_get_next_pane (window);
 
+	if (!next_pane) {
+		return;
+	}
 	location = nautilus_window_slot_get_location (next_pane->active_slot);
 	if (location) {
 		nautilus_window_slot_go_to (window->details->active_pane->active_slot, location, FALSE);

=== modified file 'src/nautilus-navigation-window.c'
--- src/nautilus-navigation-window.c	2010-03-29 11:32:07 +0000
+++ src/nautilus-navigation-window.c	2010-04-19 13:24:47 +0000
@@ -1304,6 +1304,7 @@
 	}
 
 	nautilus_navigation_window_update_show_hide_menu_items (window);
+	nautilus_navigation_window_update_split_view_actions_sensitivity (window);
 }
 
 gboolean