Description:
------------
I tried the code below with many version of PHP5 include the lastest cvs

1.Open notepad
2.Code below

<?
session_start();
//or header(....);
?>

3.Save as UTF-8
4.test

Result...

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at c:\Inetpub\wwwroot\x.php:1) in c:\Inetpub\wwwroot\x.php on line 2

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at c:\Inetpub\wwwroot\x.php:1) in c:\Inetpub\wwwroot\x.php on line 2

........................

No any character before tag <?
But when open file with Hex editor 

&iuml;&raquo;&iquest;<?
session_start();
?>

There are 3 special characters before tag <?
I think that is a sign to tell editor know it is UTF-8
Why PHP5 error ?