Express Scribe installed in Linux, but will not play files

Swarup

I have loaded Express Scribe v 4.14 in Linux (Ubuntu Hardy), and it installed perfectly. I have a .wav file on my desktop and have loaded it into Express Scribe. But it will not play that file, nor any file that I load. Including the "welcome" file that came included with your program. When I click on "play", nothing happens. The time counter doesn't move, nothing at all happens. As if I hadn't even hit the play button. So what do I do to make the play function work?

(note: the files play fine in other applications, just not in Express Scribe.)

Thank you,

Swarup

If someone could tell me how to uninstall it, then at least I could try uninstalling and reinstalling it.

Thanks,

Swarup