When playing a stream through MyRadio I get 2 visualisation windows in the bottom left corner. For example try the following streams:

http://64.236.34.67:80/stream/1040
http://64.236.34.67:80/stream/1038


Seen in Metal and MCE

Note that I added them through the Configuration program in the Radio-->Stations section. Easy to reproduce, just start playing a stream.