loadMovie, cache , Explorer

Hi,
I want to prevent that a loaded swf gets cached in the browser.

Here are two codes that should work:

loader.loadMovie("adminMenu.swf?rand="+new Date().getTime())

[COLOR=#000000]

[/COLOR]

myIdentifier = Math.round(Math.random()*10000);
    loader.loadMovie("result_load.swf?uniq="+myIdentifier, 1);

And they do, that is, in Mozilla and Netscape, but not in Explorer!

Does anyone know about this, and why??

Thanks,

Jerryj.