I just bought a mac mini and the plan was to run it through my tv using an HDMI cord. When I go to set things up. I get to the display section in "system preferences" and I started playing around with resolutions to see which would work best with the tv that I have. All the sudden the tv screen went black and now the tv doesn't detect the mac mini through HDMI. After restarting the computer the apple logo would come up and everything would start to boot and then it's like the tv and computer would drop the signal. I don't think that it's something that I done with the resolution. I checked and seen that this is a common problem, but I don't know how to fix this problem. Any advice is good advice and I really appreciate it.