Everything was fine until a couple days ago. I can no longer get SlingBox running on my iMac. My SlingBox 500 shows both the power on and connected to my network. It works/streams w/my MacBook and my iPhone, but no longer on my iMac. When I try to run on my iMac, it begins to initialize, then just freezes up. Should I try disconnecting power and reconnecting or doing a reset? I am a bit confused since it works fine on my other devices. Thanks for any help.