1 files changed, 4 insertions, 1 deletions
diff --git a/threads.js b/threads.js
index fe5540c..d1e57d3 100644
--- a/threads.js
+++ b/threads.js
@@ -83,7 +83,7 @@ ArgLabelMorph, localize, XML_Element, hex_sha512*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.threads = '2013-December-05';
+modules.threads = '2013-December-11';
 
 var ThreadManager;
 var Process;
@@ -2058,6 +2058,9 @@ Process.prototype.reportLetter = function (idx, string) {
 };
 
 Process.prototype.reportStringSize = function (string) {
+    if (string instanceof List) { // catch a common user error
+        return string.length();
+    }
     var str = (string || '').toString();
     return str.length;
 };