diff -r f9019462465a -r 3a5a9421687b client/js/paper-renderer.js
--- a/client/js/paper-renderer.js	Thu Feb 14 17:39:52 2013 +0100
+++ b/client/js/paper-renderer.js	Thu Feb 21 17:36:29 2013 +0100
@@ -557,7 +557,7 @@
     this.renderer.edge_layer.activate();
     this.type = "temp-edge";
     
-    var _color = this.project.get("users").get(this.renderer.renkan.current_user).get("color") || "#000000";
+    var _color = (this.project.get("users").get(this.renderer.renkan.current_user) || Rkns.Renderer._USER_PLACEHOLDER).get("color");
     this.line = new paper.Path();
     this.line.strokeColor = _color;
     this.line.add([0,0],[0,0]);