[jQuery] Problem with parameter message

[gannher]

Hello

I'm trying to use blockUI.

It's work fine but when i want to customize the message, i see again
"Please wait..."

My code:
$(document).ready(function() {
        $.blockUI({ message: '<h1>test</h1>' });
        setTimeout($.unblockUI, 2000);
});

Version blockUI: jquery.blockUI.1.33.js
Version JQuery: jquery-1.3.2.js

Navigator: IE6

Thanks for help