360 HDMI Ballache
Hopefully this one goes better than the last one..
So I had my 360 hooked to my TV with a HDMI cable, then took the HDMI out to put into my laptop so I could stream through my TV. When I plugged the HDMI back in to the 360, there was no sound, apps stopped working and the quality went down. I tried using another HDMI cable, but it's still the same.
I looked on Google, but all the answers were 'change HDMI cable', which I've already done.