diff --git a/lib/ace/renderloop.js b/lib/ace/renderloop.js
index ccbe98e1..6d31bd13 100644
--- a/lib/ace/renderloop.js
+++ b/lib/ace/renderloop.js
@@ -55,7 +55,7 @@ var RenderLoop = function(onRender, win) {
         //this.onRender(change);
         //return;
         this.changes = this.changes | change;
-        if (!this.pending) {
+        if (!this.pending && this.changes) {
             this.pending = true;
             var _self = this;
             event.nextFrame(function() {
diff --git a/lib/ace/virtual_renderer.js b/lib/ace/virtual_renderer.js
index dbf02aee..02d17d64 100644
--- a/lib/ace/virtual_renderer.js
+++ b/lib/ace/virtual_renderer.js
@@ -127,7 +127,7 @@ var VirtualRenderer = function(container, theme) {
 
     this.$textLayer.addEventListener("changeCharacterSize", function() {
         _self.updateCharacterSize();
-        _self.onResize(true);
+        _self.onResize(true, _self.gutterWidth, _self.$size.width, _self.$size.height);
         _self._signal("changeCharacterSize");
     });
 
@@ -1272,10 +1272,11 @@ var VirtualRenderer = function(container, theme) {
         clearInterval(this.$timer);
 
         _self.session.setScrollTop(steps.shift());
+        // trick session to think it's already scrolled to not loose toValue
+        _self.session.$scrollTop = toValue;
         this.$timer = setInterval(function() {
             if (steps.length) {
                 _self.session.setScrollTop(steps.shift());
-                // trick session to think it's already scrolled to not loose toValue
                 _self.session.$scrollTop = toValue;
             } else if (toValue != null) {
                 _self.session.$scrollTop = -1;
@@ -1534,7 +1535,7 @@ var VirtualRenderer = function(container, theme) {
     *
     **/
     this.setStyle = function(style, include) {
-        dom.setCssClass(this.container, style, include != false);
+        dom.setCssClass(this.container, style, include !== false);
     };
 
     /**
@@ -1545,6 +1546,11 @@ var VirtualRenderer = function(container, theme) {
     this.unsetStyle = function(style) {
         dom.removeCssClass(this.container, style);
     };
+    
+    this.setCursorStyle = function(style) {
+        if (this.content.style.cursor != style)
+            this.content.style.cursor = style;
+    };
 
     /**
     * @param {String} cursorStyle A css cursor style