apparently, when google +1 content locker is enabled, it messes with Mp3-Jplayers gui bar for Internet explorer.
Oddly, firefox and Chrome work fine. The problem only occurs for IE.
Another probably unrelated matter, i notice for my theme, the search gets pushed to the right by a good margin when this google+1 content locker plugin is enabled.
I hope the 2 plugins can play nice together :{