diff --git a/ui (gen4)/features/base.js b/ui (gen4)/features/base.js
index bff6ce50..e4acae62 100755
--- a/ui (gen4)/features/base.js	
+++ b/ui (gen4)/features/base.js	
@@ -665,7 +665,7 @@ module.SortActions = actions.Actions({
 			var that = this
 
 			if(method == 'reverse'){
-				method = []
+				method = 'update'
 				reverse = true
 			}
 
@@ -703,6 +703,11 @@ module.SortActions = actions.Actions({
 				i = method.indexOf('reverse')
 			}
 
+			// can't sort if we know nothing about .images
+			if(method && method.length > 0 && (!this.images || this.images.length == 0)){
+				return
+			}
+
 			// build the compare routine...
 			method = method
 				// remove duplicate methods...
@@ -714,6 +719,9 @@ module.SortActions = actions.Actions({
 						|| (function(){
 							var p = m.split(/\./g)
 							var _get = function(obj){
+								if(obj == null){
+									return null
+								}
 								for(var i=0; i<p.length; i++){
 									obj = obj[p[i]]
 									if(obj === undefined){
@@ -777,8 +785,9 @@ module.SortActions = actions.Actions({
 					.concat(this.data.manual_order ? ['Manual'] : [])},
 			// prevent setting 'none' as mode...
 			function(mode){ 
-				return mode != 'none' 
-					|| (mode == 'Manual' && this.data.manual_order) },
+				return !!this.images 
+					&& (mode != 'none' 
+						|| (mode == 'Manual' && this.data.manual_order)) },
 			function(mode){ 
 				// save manual order...
 				if(this.data.sort_method == 'Manual'){
diff --git a/ui (gen4)/features/demo.js b/ui (gen4)/features/demo.js
index 7999c929..d6fac9a4 100755
--- a/ui (gen4)/features/demo.js	
+++ b/ui (gen4)/features/demo.js	
@@ -72,7 +72,7 @@ module.Demo = core.ImageGridFeatures.Feature({
 			function(){
 				this.load({
 					data: data.Data(demo_data),
-					images: images.Images(data),
+					images: images.Images(),
 				})
 			}],
 	})
diff --git a/ui (gen4)/features/ui-marks.js b/ui (gen4)/features/ui-marks.js
index c994fee7..c113d3e2 100755
--- a/ui (gen4)/features/ui-marks.js	
+++ b/ui (gen4)/features/ui-marks.js	
@@ -34,7 +34,7 @@ var base = require('features/base')
 // NOTE: of no data is defined this will not have any effect...
 function makeTagTogglerAction(tag){
 	var t = function(target, action){
-		if(target == '?' || target == 'on' || target == 'off'){
+		if(target == '?' || target == '??'|| target == 'on' || target == 'off'){
 			var x = action
 			action = target
 			target = x
@@ -63,8 +63,17 @@ function makeTagTogglerAction(tag){
 			this.untag(tag, target)
 			var res = 'off'
 
+		// ?
+		} else if(action == '?'){
+			var res = this.data.toggleTag(tag, target, '?')
+			res = res.length == 1 ? res[0] : res
+
+		// ??
+		} else if(action == '??'){
+			res = ['on', 'off']
+
 		// next...
-		} else if(action != '?'){
+		} else {
 			var res = []
 			var that = this
 			target.forEach(function(t){
@@ -78,14 +87,6 @@ function makeTagTogglerAction(tag){
 			})
 			res = res.length == 1 ? res[0] : res
 
-		// ?
-		} else if(action == '?'){
-			var res = this.data.toggleTag(tag, target, '?')
-			res = res.length == 1 ? res[0] : res
-
-		// ??
-		} else if(action == '?'){
-			res = ['on', 'off']
 		}
 
 		return res