Yeah just tried that, same result.
Don't know if it makes a difference but when I run the script direct from the browser, I do get the 'Loading Directly' bit.
Code:
Loading Directly.
Warning: imap_open(): Couldn't open stream {pop3.netnuptials.net:110/pop3 in /vbox.php on line 24
Warning: imap_num_msg(): supplied argument is not a valid imap resource in /vbox.php on line 26
done processed 0 of mails