just wanan chime in and say I've been getting this recently too

seems to be totally random though as sometimes I might not look to play a file from mezzmo for a few days and its fine, and sometimes i go to play a mezzmo file and my TV doesnt see Mezzmo anymore

desktop PC, win7, always on, and the TV can always see the Win Media share

also noticed the high CPU usage on mezzmo after pretty much anytime I play a movie my PC is still running at 100% CPU until I exit mezzmo and restart it