Windows Media Player 9, error when trying to listen to radio link

whenever I try to open a link on a specific radio on the internet with the
following address
http://www.lrt.lt/ci.media.play.php?...6/lr1live&id=0 ,
the media player opens up and after a coupe of seconds I get the following
pop up message " Windows Media Player encountered an unknown error."

This only occurs while I attempt to listen to " http://www.lrt.lt/" the above
address is a link from the main program window. This problem started about 2
weeks ago. I was using norton antivirus 2004 and thought the problem was
Norton so I uninstalled norton only retain go back. and activated the Zone
Alarm Antivirus which updates definitions automatically.

I am using Windows98SE and Zone alarm with antivirus 5.5.094 antivirus engine
11.9.1.00

Any ideas would be appreciated. I have spent 2 weeks trying to find a
solution visiting Microsoft and Zone Labs wb pages with no hints of how to
even approach a solution.