diff --git a/lib/ice-coder.js b/lib/ice-coder.js
index 17cc484..f5edb28 100644
--- a/lib/ice-coder.js
+++ b/lib/ice-coder.js
@@ -1038,7 +1038,7 @@ var ICEcoder = {
 
 	// Get the mouse position on demand
 	getMouseXY: function(e,area) {
-		var tempX, tempY, scrollTop;
+		var tempX, tempY, scrollTop, winW;
 
 		top.ICEcoder.mouseX = e.pageX ? e.pageX : e.clientX + document.body.scrollLeft;
 		top.ICEcoder.mouseY = e.pageY ? e.pageY : e.clientY + document.body.scrollTop;
@@ -1049,6 +1049,8 @@ var ICEcoder = {
 		if (area=="editor") {
 			top.ICEcoder.mouseX += top.ICEcoder.filesW;
 		}
+		winW = window.innerWidth ? window.innerWidth : document.body.clientWidth;
+		if (top.ICEcoder.mouseX > (winW-20)) {top.ICEcoder.mouseDown=false};
 		top.ICEcoder.dragCursorTest();
 	},