Over the past couple of months (I update XBMC quite regularly) , a Nullsoft .NSV live video stream i use is no longer displaying the video although i do get audio. Once the stream starts the audio plays and i can then navigate around the XBMC menus.
If i go back to an earlier version of XBMC ( i kept a backup) , the stream plays properly with video.
However this sample stream : http://download.nullsoft.com/nsv/samples/skydive1.nsv
from Nullsoft streams perfectly with the latest version of XBMC but this is not a live stream, i dont know if this makes a difference.