Hi Frederico,

I had the same problem with jqueryUI dialogs,

I added in jquery.pupload.queue.js at the end
        if (settings==='destroy') {

            var currentUploaderID=$(this[0]).attr('id');
            var currentUploader=uploaders[currentUploaderID];
            currentUploader.removeAllFiles();
            renderUI(currentUploaderID, $(this[0]))
        }

and in pupload.js
            removeAllFiles : function(file) {
                var i;

                for (i = files.length - 1; i >= 0; i--) {
                        files.pop();
                }
            },

and after the dialog becomes invisible I call

$(selector).pluploadQueue("destroy");

with that I "reset the queue",,,there are a few details missing but that's my solution.

PS: I think after the tab with the uploader is selected, you should do uploader.refresh();

PPS: if that doesn't work read here http://jqueryui.com/demos/tabs/#...my_s … .29_tab.3F

because you tabs become invisible by "display:none;" that creates some problems with flash

Solved it! Its not pretty, but works. The problem here was display:none, and how Firefox handles it. So i used "visibility" combined with "height" instead.

Heres how I've done it:

The "Image" div tab, where the widget is supposed to be located, left it empty. I inserted the widget below that div with visibility: hidden:

<div id="flash_uploader" style="visibility:hidden;">Necessita de Flash para visualizar esta secção.</div>

Next, I show / hide this div and set its height and width when you click the "image" tab:
        //Show flash uploader widget and set width and height
    $('#tabs_tabs').bind('tabsshow', function(event, ui) {
        if (ui.panel.id == "tab_image") {
            $("#flash_uploader").css('visibility','visible')
            .css('width','100%')
            .css('height','330px');
        }
    });
    //For everyother tab, hide it and set height 0
    $('#tabs_tabs').bind('tabsshow', function(event, ui) {
        if (ui.panel.id != "tab_image") {
            $("#flash_uploader").css('visibility','hidden')
            .css('height','0px');
        }
    });

Now it works in every browser. Hope this helps someone.

Thanks,
Frederico

It is cause by function appendTo in UI dialog .. beacuse it run js script of plupload twice.