Flash site works in IE but doesnt work in Firefox

Hi!!!

I have a full flash site that works perfectly in IE. But when it comes to firefox, only the product gallery of the website fails. The gallery has three buttons. Each one display a number of photographs in a right slider. The problem with firefox is that the images are displayed 3 minutes after you release the button. Once the images are loaded, the slider works fine, the previews launch the full images, etc... But i can't upload a site that takes too much to load. And i don't think the problem is related to the website's weight because i would have the same problem with IE, wich i don't.

What can i do?
Any ideas??

Thanks a lot.

did you try pressing control + r in firefox and delete all temp files so it has to load everything again?