Most of the radio should work fine in IE./Firefox/Chrome/Opera. If it doesn't running download Adobe Flash Player. After installing the plugin "refresh" your browser.
If radio doesn't start itself, select the different browser or If the Radio is extremely choppy and stops every 5 seconds, try listen to this Radio at different time.
Not all Radio Stations function for 24 hours everyday. If you can't listen to any Radio, try to listen at different time, as the Radio Station may stop during midnight according to its own country time zone.