About 6 hours after I posted my blog last week I received a call from the local authorized repair shop. These are the same folks that treated me well in the past. After explaining the situation to them, they said they’d give me a call back. The next day I missed the call, but they left a message explaining that they still only have a main board with the same firmware as the last board they installed, so they’d be contacting Samsung for further guidance, or to perhaps have the set replaced. Where have I heard that before?