--- dia-0.94/app/interface.c.orit	2005-03-10 08:29:36.000000000 +0000
+++ dia-0.94/app/interface.c	2005-03-10 08:30:44.000000000 +0000
@@ -877,6 +877,17 @@
       GError* gerror = NULL;
       
       pixbuf = gdk_pixbuf_new_from_file(sheet_obj->pixmap_file, &gerror);
+      if (pixbuf == NULL) {
+          int len = strlen(sheet_obj->pixmap_file);
+          if ((len > 4) && !strcmp(sheet_obj->pixmap_file+len-4, ".png"))
+	  {
+                GError* gerrortwo = NULL;
+          	strcpy(sheet_obj->pixmap_file+len-4, ".xpm");
+      		pixbuf = gdk_pixbuf_new_from_file(sheet_obj->pixmap_file, &gerrortwo);
+      		if (gerrortwo) g_error_free (gerrortwo);
+          }
+      }
+
       if (pixbuf != NULL) {
           gdk_pixbuf_render_pixmap_and_mask(pixbuf, &pixmap, &mask, 1.0);
           gdk_pixbuf_unref(pixbuf);
@@ -885,6 +896,7 @@
           g_warning("failed to load pixbuf for file %s; cause=%s",
                     sheet_obj->pixmap_file,gerror?gerror->message:"[NULL]");
       }
+      if (gerror) g_error_free (gerror);
     } else {
       DiaObjectType *type;
       type = object_get_type(sheet_obj->object_type);