Loading Flash movie in IE

i have a flash peel in my page.It works nice in Mozilla but in IE there is a delay in loading the flash .After loading the page it takes some more time to load the flash.From javascript actionscript is being called using ExternalInterface function.If the ExternalInterface is called before the flash loads IE gives the following error
“Object required” .Please help to fix this problem.I being working on this problem for about 3 days