--- a/install/install.php
+++ b/install/install.php
@@ -152,8 +152,7 @@
 			$penname = descript($_POST['newpenname']);

 			if((!$_POST['email']) && !isADMIN) $fail .= "<div style='text-align: center;'>"._EMAILREQUIRED." "._TRYAGAIN."</div>";

 			if($penname && !preg_match("!^[a-z0-9_ ]{3,30}$!i", $penname)) $fail = "<div style='text-align: center;'>"._BADUSERNAME." "._TRYAGAIN."</div>";

-//			if(!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $_POST[email])) $fail = "<div style='text-align: center;'>"._INVALIDEMAIL." "._TRYAGAIN."</div>";

-			if(!preg_match("^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$", $_POST[email])) $fail = "<div style='text-align: center;'>"._INVALIDEMAIL." "._TRYAGAIN."</div>";

+			if(!preg_match("/[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+/i", $_POST[email])) $fail = "<div style='text-align: center;'>"._INVALIDEMAIL." "._TRYAGAIN."</div>";

 			if($_POST['password'] == $_POST['password2']) $encryptpassword = md5($_POST[password]);

 			else $fail =  write_message(_PASSWORDTWICE);

 			if(!isset($fail)) {