[Plugin: MediaElement.js – HTML5 Video & Audio Player] Video plays with black screen

Hello,

Just installed this plugin and noticed the video plays in FF but with a black screen.

Safari and iPod Touch works fine however.

Any suggestions? Thank you.

You can see the video at http://www.smithweb.co.jp/soapbox/2010/11/%E3%82%B9%E3%83%9F%E3%82%B9%E8%8B%B1%E4%BC%9A%E8%A9%B1-toeic-%E3%83%AC%E3%83%83%E3%82%B9%E3%83%B3lesson-45-evs/

http://wordpress.org/extend/plugins/media-element-html5-video-and-audio-player/