Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148a Safari/6533.18.5)
What os are you running, what version of browsers? Make sure you have all updates. I am not having a problem...
I know this post is really old, but I'lll give it a shot.
I'm having the same problem with Netflix! I'm running Snow Leopard with the most recent versions of Safari and/or Firefox - even Opera - it doesn't matter.
After some random amount of time streaming video in Netflix the screen goes black and the sound stutters in the background and the only way to make it stop is to do a hard restart.
It has nothing to do with buffering or updating silverlight. I updated silverlight and I wait for the video to buffer.
I am having the exact same problems!!! I thought I might need an update so I tried that but NO JOY! maybe there is some Mac Mini BUG. Mine is 3 years old the one with the DVD Slot. How about yours?