diff --git a/src/pixi/display/DisplayObjectContainer.js b/src/pixi/display/DisplayObjectContainer.js
index 68ba15c..09d5b0c 100644
--- a/src/pixi/display/DisplayObjectContainer.js
+++ b/src/pixi/display/DisplayObjectContainer.js
@@ -72,7 +72,7 @@
 	var previousObject;
 	
 	// this could be wrong if there is a filter??
-	if(this._filters)
+	if(this._filters || this._mask)
 	{
 		previousObject =  this.last._iPrev;
 	}

diff --git a/src/pixi/display/DisplayObjectContainer.js b/src/pixi/display/DisplayObjectContainer.js
index 68ba15c..09d5b0c 100644
--- a/src/pixi/display/DisplayObjectContainer.js
+++ b/src/pixi/display/DisplayObjectContainer.js
@@ -72,7 +72,7 @@
 	var previousObject;
 	
 	// this could be wrong if there is a filter??
-	if(this._filters)
+	if(this._filters || this._mask)
 	{
 		previousObject =  this.last._iPrev;
 	}
diff --git a/src/pixi/extras/CustomRenderable.js b/src/pixi/extras/CustomRenderable.js
index e9812b2..24b2258 100644
--- a/src/pixi/extras/CustomRenderable.js
+++ b/src/pixi/extras/CustomRenderable.js
@@ -13,7 +13,8 @@
 PIXI.CustomRenderable = function()
 {
 	PIXI.DisplayObject.call( this );
-
+	
+	this.renderable = true;
 }
 
 // constructor

diff --git a/src/pixi/display/DisplayObjectContainer.js b/src/pixi/display/DisplayObjectContainer.js
index 68ba15c..09d5b0c 100644
--- a/src/pixi/display/DisplayObjectContainer.js
+++ b/src/pixi/display/DisplayObjectContainer.js
@@ -72,7 +72,7 @@
 	var previousObject;
 	
 	// this could be wrong if there is a filter??
-	if(this._filters)
+	if(this._filters || this._mask)
 	{
 		previousObject =  this.last._iPrev;
 	}
diff --git a/src/pixi/extras/CustomRenderable.js b/src/pixi/extras/CustomRenderable.js
index e9812b2..24b2258 100644
--- a/src/pixi/extras/CustomRenderable.js
+++ b/src/pixi/extras/CustomRenderable.js
@@ -13,7 +13,8 @@
 PIXI.CustomRenderable = function()
 {
 	PIXI.DisplayObject.call( this );
-
+	
+	this.renderable = true;
 }
 
 // constructor
diff --git a/src/pixi/renderers/canvas/CanvasRenderer.js b/src/pixi/renderers/canvas/CanvasRenderer.js
index 641faa8..a1a7352 100644
--- a/src/pixi/renderers/canvas/CanvasRenderer.js
+++ b/src/pixi/renderers/canvas/CanvasRenderer.js
@@ -195,6 +195,7 @@
 		}
 		else if(displayObject instanceof PIXI.CustomRenderable)
 		{
+			context.setTransform(transform[0], transform[3], transform[1], transform[4], transform[2], transform[5]);
 			displayObject.renderCanvas(this);
 		}
 		else if(displayObject instanceof PIXI.Graphics)
@@ -204,25 +205,27 @@
 		}
 		else if(displayObject instanceof PIXI.FilterBlock)
 		{
-			if(PIXI.FilterBlock.data instanceof PIXI.Graphics)
-			{
+			if(displayObject.data instanceof PIXI.Graphics)
+ 			{
++				var mask = displayObject.data;
+
 				if(displayObject.open)
 				{
 					context.save();
 					
-					var cacheAlpha = displayObject.mask.alpha;
-					var maskTransform = displayObject.mask.worldTransform;
+					var cacheAlpha = mask.alpha;
++					var maskTransform = mask.worldTransform;
 					
 					context.setTransform(maskTransform[0], maskTransform[3], maskTransform[1], maskTransform[4], maskTransform[2], maskTransform[5])
 					
-					displayObject.mask.worldAlpha = 0.5;
+					mask.worldAlpha = 0.5;
 					
 					context.worldAlpha = 0;
 					
-					PIXI.CanvasGraphics.renderGraphicsMask(displayObject.mask, context);
+					PIXI.CanvasGraphics.renderGraphicsMask(mask, context);
 					context.clip();
 					
-					displayObject.mask.worldAlpha = cacheAlpha;
+					mask.worldAlpha = cacheAlpha;
 				}
 				else
 				{