Spell Check Error (Connection refused)

I am running 2.7.1 on Linux behind firewall.

The following error message shows up when spell checking

Error response:
<b>Warning</b>: fsockopen() [function.fsockopen]: unable to connect to ssl://www.google.com:443 (Connection refused) in <b>/data/preview/wordpress-2.7.1/wp-includes/js/tinymce/plugins/spellchecker/classes/GoogleSpell.php</b> on line <b>86</b>
Could not open SSL connection to google.{“id”:null,”result”:[],”error”:null}

Any clue? Thanks!