Mp3 streaming causing Mac Firefox, Safari browsers to lock up

Hello,

   We are having a very strange and detrimental problem on our site.   

We have a very high-traffic/bandwidth site that is written primarily in Ruby on Rails and Flash 8. It’s a music site that features a flash player that plays Mp3’s and is a very major part of our site.

The site works fine on windows but, on the latest versions of Mac Firefox and Safari, once you try to play an Mp3 on the flash player the browser completely locks up so bad you can’t even open the browser again w/ out having to restart the computer after having to force quit the browser. THIS ONLY HAPPENS WHEN BOTH FIREFOX AND SAFARI ARE OPEN AT THE SAME TIME. I also don’t even get the usual flash error message that a “script is taking too long”.

Has anyone seen a similar problem w/ playing Mp3’s on the latest Firefox and Safari browsers?

Thanks for all and any help!

Clem C