Happens in particular if CAM decryption fails on channels where the pcr pid is 
encrypted but other pids are not encrypted.

Revert [15458] and change default scrolling behavior to "stoped". You need to click on the text to start the scrolling.

 (hope it works ;)

Add scrolling="autooff" : same behavior as "auto" except that it starts in the soped state. Use that in the default skin.