Yes. I am simply pasting the url: http://www.yourmuze.fm/webplayer/?id=67188 directly into my PC's browser. I am listening to the stream through the builtin yourmuze player. After a few minutes, the stream will stop, the player will display "initializing", it plays a loop of "connecting to your muze" and then starts my stream again on a different song for a few minutes until it fails again.
That's what happens when your internet access is too slow for the YOURMUZE bitrate. 64 kbits for the flashplayer, I think. It doesn't sound like anything to do with the radio station. (In any case, I think YOURMUZE plays tones whenever it loses a station's feed.) The fact that your station plays okay for me pretty much rules out station problems.
Try listening to some other stations here http://www.yourmuze.fm/stations_list and I expect you will encounter the same problem.
Have you added it to your YOURMUZE favourites? If so, set the bitrate to something low and try listening to the station. Should play okay now.