diff --git a/ui/data.js b/ui/data.js
index 9195a992..00e6fb4f 100755
--- a/ui/data.js
+++ b/ui/data.js
@@ -123,9 +123,14 @@ var CONFIG = {
 	// NOTE: The value should be >1 or zooming will be reversed.
 	zoom_step_scale: 1.2,
 
-	// ribbon scaling limits and defaults...
+	// ribbon scaling limits and defaults (pixels)...
+	// ~10 images per screen @ 1024x768
 	min_image_size: 100,
-	default_screen_images: 4,
+	// ~4 images per screen @ 1024x768
+	default_image_size: 250,
+
+	single_image_scale_2: 1.125,
+	single_image_scale_3: 3,
 
 	// localStorage prefix...
 	data_attr: 'DATA',
@@ -2272,7 +2277,9 @@ function reloadViewer(reuse_current_structure, images_per_screen){
 	var current = DATA.current
 	// if no width is given, use the current or default...
 	var w = images_per_screen == null ? getScreenWidthInImages() : images_per_screen
-	w = w > getScreenWidthInImages(CONFIG.min_image_size) ? CONFIG.default_screen_images : w
+	w = w > getScreenWidthInImages(CONFIG.min_image_size) 
+		? getScreenWidthInImages(CONFIG.default_image_size) 
+		: w
 
 	// reset data structure...
 	if(!reuse_current_structure){
diff --git a/ui/index.html b/ui/index.html
index 0ba25086..84d5678e 100755
--- a/ui/index.html
+++ b/ui/index.html
@@ -53,6 +53,7 @@
 
 <script>
 
+
 //DEBUG = true
 
 var SCROLLER_ENABLED = true
diff --git a/ui/keybindings.js b/ui/keybindings.js
index 1c027e1d..36b8dc0e 100755
--- a/ui/keybindings.js
+++ b/ui/keybindings.js
@@ -609,8 +609,8 @@ var KEYBOARD_CONFIG = {
 
 		// zooming...
 		'#1': doc('Fit image to screen', function(){ fitNImages(1) }),
-		'#2': doc('Show big image', function(){ fitNImages(1.125) }),
-		'#3': doc('Show small image', function(){ fitNImages(3) }),
+		'#2': doc('Show big image', function(){ fitNImages(CONFIG.single_image_scale_2) }),
+		'#3': doc('Show small image', function(){ fitNImages(CONFIG.single_image_scale_3) }),
 
 		'-': doc('Zoom in', function(){ zoomOut() }),
 		'=': doc('Zoom out', function(){ zoomIn() }),
diff --git a/ui/modes.js b/ui/modes.js
index 5122f49d..133398f9 100755
--- a/ui/modes.js
+++ b/ui/modes.js
@@ -153,7 +153,9 @@ var toggleSingleImageMode = createCSSClassToggler(
 
 				// load things...
 				w = UI_STATE['ribbon-mode-screen-images']
-				w = w == null ? CONFIG.default_screen_images : w
+				w = w == null 
+					? getScreenWidthInImages(CONFIG.default_image_size) 
+					: w
 
 				fitNImages(w)
 				var i = UI_STATE['ribbon-mode-image-info'] == 'on' ? 'on' : 'off'