Cant Upload MP3 in latest version of WP 3.4.1

hello, i recently updated WP to the latest version and when i go to my page where i previously had music uploaded, i can’t do it anymore. this is normally done in the top right hand box labeled “Add music to the page”

when i click on the Upload MP3 on my Portfolio page, it gives me a popup saying “Cheatin’ uh?”

any help on how i can upload music now would be great as well as telling me whats up with this message.

my site is http://www.replayimage.com.

help is appreciated and thanks in advance