OK, so I'm having a serious WTF moment with my 360. I use it to stream video direct from my PC so I can watch it on my TV, and I've never had a problem with it. Until now. Was watching stuff fine earlier today, then all of a sudden I get this message: OK, fine, I think. Restart Xbox, restart PC, everything will be fine. Apparently not. Despite everything being 100% (everything is shared, set up in Media Player, connection is hunky dory, firewall is fine etc.), it will NOT stream video or music from my PC. Anybody have ANY ideas at all??