Hmmm okay, can you test using the Firefox browser? Download the extension called "Firebug" and hit the "Get quotes" button. You should see, in the Console for Firebug (you'll need to hit F12 to bring Firebug up) some POST variables and their responses. Try posting here whatever messages Firebug receives. I'm not sure at this point what the issue could be, sounds like the SSL issue that was mentioned before to be honest - either that or possibly a PHP version (simplexml) issue...