diff --git a/ChangeLog b/ChangeLog
index f069381d68..9c20975f19 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Apr 26 18:14:28 MEST 1998 Sven Neumann <sven@gimp.org>
+
+	* gimp_tips.txt: added yet another tip
+
 Sun Apr 26 17:50:36 MEST 1998 Sven Neumann <sven@gimp.org>
 
 	* updated engrave plug-in
diff --git a/gimp_tips.txt b/gimp_tips.txt
index 39ea36e2d6..116e6a8776 100644
--- a/gimp_tips.txt
+++ b/gimp_tips.txt
@@ -65,6 +65,10 @@ Most file-formats can't handle layers and for that reason only
 the active layer is saved.  Use XCF, the GIMP's native file format 
 to keep layers, channels and guides when saving.
 
+Not all effects can be applied to all kinds of images.  This 
+is indicated by a grayed-out menu-entry.  You may need to 
+change the image to RGB, add an alpha-channel or flatten it.
+
 # Tips for intermediate users start here
 #