diff -r b5c2449616b5 -r 66dde6412125 src/newgrf_gui.cpp
--- a/src/newgrf_gui.cpp	Sun Jun 17 21:31:00 2007 +0000
+++ b/src/newgrf_gui.cpp	Tue Jun 26 23:40:58 2007 +0000
@@ -156,6 +156,11 @@
 			break;
 		}
 
+		case WE_DOUBLE_CLICK:
+			if (e->we.click.widget != 3) break;
+			e->we.click.widget = 6;
+			/* Fall through */
+
 		case WE_CLICK:
 			switch (e->we.click.widget) {
 				case 3: {
@@ -186,7 +191,6 @@
 						GRFConfig *c = CallocT<GRFConfig>(1);
 						*c = *src;
 						c->filename = strdup(src->filename);
-						if (src->full_path != NULL) c->full_path = strdup(src->full_path);
 						if (src->name      != NULL) c->name      = strdup(src->name);
 						if (src->info      != NULL) c->info      = strdup(src->info);
 						c->next = NULL;
@@ -307,12 +311,12 @@
 		GRFConfig *c;
 		int i = 0;
 
-		CopyGRFConfigList(nd->orig_list, *nd->list);
+		CopyGRFConfigList(nd->orig_list, *nd->list, false);
 		ReloadNewGRFData();
 
 		/* Show new, updated list */
 		for (c = *nd->list; c != NULL && c != nd->sel; c = c->next, i++);
-		CopyGRFConfigList(nd->list, *nd->orig_list);
+		CopyGRFConfigList(nd->list, *nd->orig_list, false);
 		for (c = *nd->list; c != NULL && i > 0; c = c->next, i--);
 		nd->sel = c;
 
@@ -469,7 +473,9 @@
 							NewGRFConfirmationCallback
 						);
 					} else {
-						CopyGRFConfigList(WP(w, newgrf_d).orig_list, *WP(w, newgrf_d).list);
+						CopyGRFConfigList(WP(w, newgrf_d).orig_list, *WP(w, newgrf_d).list, true);
+						ResetGRFConfig(false);
+						ReloadNewGRFData();
 					}
 					break;
 
@@ -498,7 +504,9 @@
 
 		case WE_DESTROY:
 			if (!WP(w, newgrf_d).execute) {
-				CopyGRFConfigList(WP(w, newgrf_d).orig_list, *WP(w, newgrf_d).list);
+				CopyGRFConfigList(WP(w, newgrf_d).orig_list, *WP(w, newgrf_d).list, true);
+				ResetGRFConfig(false);
+				ReloadNewGRFData();
 			}
 			/* Remove the temporary copy of grf-list used in window */
 			ClearGRFConfigList(WP(w, newgrf_d).list);
@@ -565,7 +573,7 @@
 	if (w == NULL) return;
 
 	w->resize.step_height = 14;
-	CopyGRFConfigList(&local, *config);
+	CopyGRFConfigList(&local, *config, false);
 
 	/* Clear selections */
 	WP(w, newgrf_d).sel         = NULL;