diff --git a/ui (gen4)/features/ui-widgets.js b/ui (gen4)/features/ui-widgets.js
index a824f992..9b5be619 100755
--- a/ui (gen4)/features/ui-widgets.js	
+++ b/ui (gen4)/features/ui-widgets.js	
@@ -1382,7 +1382,7 @@ var ButtonsActions = actions.Actions({
 			//'<i>ImageGrid.Viewer</i>': ['title', ''],
 			//'t': ['touch', 'toggleSideButtons -- Toggle touch ui'],
 			//'&#9965;': ['ui-settings', 'browseActions: "Interface/" -- Interface settings...'],
-			'&#9974;': ['single-image', 'toggleSingleImage -- View mode'],
+			'&#9974;': ['view', 'toggleSingleImage -- Single image / ribbon toggle'],
 		},
 
 		// XXX not sure about these yet...
diff --git a/ui (gen4)/features/ui.js b/ui (gen4)/features/ui.js
index c79c37ac..662a2ad6 100755
--- a/ui (gen4)/features/ui.js	
+++ b/ui (gen4)/features/ui.js	
@@ -1990,10 +1990,12 @@ var ControlActions = actions.Actions({
 						h *= s
 
 						// preview offsets within the block...
+						// NOTE: this assumes the image is centered...
 						var dw = (W-w)/2
 						var dh = (H-h)/2
 
 						// check if we clicked the image...
+						// NOTE: this assumes the image is centered...
 						var clicked_image = 
 							(x >= dw && x <= W-dw)
 							&& (y >= dh && y <= H-dh)