diff --git a/index.html b/index.html
index 024db3bf..f44150ef 100644
--- a/index.html
+++ b/index.html
@@ -52,7 +52,7 @@
       var world;
       window.onload = function () {
         console.log("is Retina supported: " + isRetinaSupported());
-        disableRetinaSupport();
+        // disableRetinaSupport();
         world = new WorldMorph(document.getElementById('world'));
         world.worldCanvas.focus();
         new IDE_Morph().openIn(world);
diff --git a/stitchcode/objects.js b/stitchcode/objects.js
index 4afdaa9f..d04fe960 100644
--- a/stitchcode/objects.js
+++ b/stitchcode/objects.js
@@ -2548,7 +2548,7 @@ StageMorph.prototype.initRenderer = function () {
           this.renderer = new THREE.WebGLRenderer({
               antialias: true,
               alpha: true,
-              canvas: this.penTrails()
+              canvas: normalizeCanvas(this.penTrails())
           });
           console.log("webgl enabled");
           this.renderer_status_msg = "webgl enabled";