diff --git a/addons/point_of_sale/static/src/css/pos.css b/addons/point_of_sale/static/src/css/pos.css
index a9baf041942..bfe2ef7f9dc 100644
--- a/addons/point_of_sale/static/src/css/pos.css
+++ b/addons/point_of_sale/static/src/css/pos.css
@@ -1072,12 +1072,14 @@
     -webkit-transition-timing-function: ease-out;
 }
 
-.point-of-sale .pos-actionbar .button.disabled{
-    color:#AAA;
+.point-of-sale .pos-actionbar .button.disabled *{
+    opacity: 0.5;
 }
 .point-of-sale .pos-actionbar .button.disabled:hover{
     border: 1px solid #cacaca;
     border-radius: 4px;
+    color: #555;
+    cursor: default;
 
     background: #e2e2e2;
     background: -webkit-linear-gradient(#f0f0f0, #e2e2e2);
diff --git a/addons/point_of_sale/static/src/js/screens.js b/addons/point_of_sale/static/src/js/screens.js
index ff07da30822..9a2071c6335 100644
--- a/addons/point_of_sale/static/src/js/screens.js
+++ b/addons/point_of_sale/static/src/js/screens.js
@@ -741,6 +741,8 @@ function openerp_pos_screens(instance, module){ //module is instance.point_of_sa
                         self.validateCurrentOrder();
                     },
                 });
+
+            this.updatePaymentSummary();
         },
         close: function(){
             this._super();
@@ -807,7 +809,9 @@ function openerp_pos_screens(instance, module){ //module is instance.point_of_sa
             this.$('#payment-paid-total').html(paidTotal.toFixed(2));
             this.$('#payment-remaining').html(remaining.toFixed(2));
             this.$('#payment-change').html(change.toFixed(2));
-            this.pos_widget.action_bar.set_button_disabled('validation', remaining > 0);
+            if(this.pos_widget.action_bar){
+                this.pos_widget.action_bar.set_button_disabled('validation', remaining > 0);
+            }
         },
         set_numpad_state: function(numpadState) {
         	if (this.numpadState) {
diff --git a/addons/point_of_sale/static/src/js/widgets.js b/addons/point_of_sale/static/src/js/widgets.js
index 5de1fd8b3fe..6de31c88dfd 100644
--- a/addons/point_of_sale/static/src/js/widgets.js
+++ b/addons/point_of_sale/static/src/js/widgets.js
@@ -433,7 +433,7 @@ function openerp_pos_widgets(instance, module){ //module is instance.point_of_sa
             var button = new module.ActionButtonWidget(this,button_options);
             this.button_list.push(button);
             if(button_options.name){
-                this.buttons[name] = button;
+                this.buttons[button_options.name] = button;
             }
             button.appendTo(this.$('.pos-actionbar-button-list'));
             return button;