GStreamer-Plugin for Nautilus only previews WAV

[Lox2Eagle]

Hello there,
The GStreamer-plugin doesn't play OGG, MP3 at mouseover, although a soundemblem is showing. The right codecs are installed and other GStreamer-applications play any file in question. I didn't find this problem by searching the forum, so maybe I missed something simple. Any pointer to a solution is apreciated.

I'm using FC3-x86_64

[imdeemvp]

It should play as I have some files that are in ogg but this may help.

[Lox2Eagle]

Thanks for your answer, but I already installed the codecs, and rhythmbox plays all musicfiles. I'm only irritated as the nautilus-plugin doesn't. I'm sorry I don't know what other details are interesting related to the plugin to work properly.