Audio Field always displayed even if it's empty

First of all, thank you for this module. The default display of the audio field is awful, and tinkering with all that theme wizard functions is still beyond my reach. Replacing that long text by a neat button/player is just what I was looking for.

Having said that, let's go to the bug description itself.

I've created a CCK content with an optional (not required) audio field. In 'Display Fields', if I choose 'Default', the field behaves as expected, i. e., it is showed if there's an audio file attached to it, and is hidden if the audio field is left empty.

But if I choose '1 Pixel Out player' or 'Button player', the audio fields – i.e. the players – are always shown, even if the fields are empty. If you click the buttons, the animation starts, as if there was something playing, but of course there's nothing playing. The 1 Pixel Out player shows an endless "Buffering..." message and the time counter is stuck in 00:00:00.

This happens in Teasers, Bodies and also in a Table view created with Views module.