--- a/includes/clientside/static/misc.js	Wed Nov 28 14:46:03 2007 -0500
+++ b/includes/clientside/static/misc.js	Wed Nov 28 14:47:42 2007 -0500
@@ -634,6 +634,6 @@
 
 function validateEmail(email)
 {
-  return ( email.match(/^(?:[\w\d]+\.?)+@((?:(?:[\w\d]\-?)+\.)+\w{2,4}|localhost)$/) ) ? true : false;
+  return ( email.match(/^(?:[\w\d_-]+\.?)+@((?:(?:[\w\d_-]\-?)+\.)+\w{2,4}|localhost)$/) ) ? true : false;
 }