no change event fired

Hello

I try to get the change event works but it doesn't seem to be the case : (I reduced the code to focus on both events, close and change)

    $("#geo_location_locale").autocomplete({
        minLength: 3,
        //define callback to format results
        source: function(req, add){
            //pass request to server
            //some code are here
        },
        //define select handler
        select: function(e, ui) {
            //some code are here
        },
        close: function(event, ui) {
            $(this).val("fired");
        },
        change: function(event, ui) {
            $(this).val("never fired");
        }

    });

When I track my code, I get the close event, but not the change event.

The problem is that they are simikar for some stuff but not for others, so I really need to get the change event fired.

I test with firefox 3.6.12.

Ia tested with :

jquery 1.3.2min.js

jquery 1.4.2.js

jquery ui 1.8.2.js

jquery ui 1.8.6.js

Do you have any idea of the problem ?

Thanks

Pierre