That must have been a pain - although my sound cut out briefly too - on my regular old TV running regular old basic cable... ;-)
My 1070 also fails to provide a colour picture from my DVD player all the time. Repeatedly changing the source was necessary last time. I should check my firmware version but you'd figure it was the latest since I received the unit in December...
The serial port update is a bit of a pain since fewer and fewer computers are coming with RS232 ports now. Hopefully all audio manufacturers will move to USB or something soon. USB can'be be very expensive to implement if you can find it in a $10 memory stick! For now I have to borrow a laptop from work if I want to do an update... sniff.
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1070, Arcam CD73T, Pioneer DV46-AV, Project Xpression-Grado Red-NAD PP2, Monster HT1600, Wharfedale 8.3 Diamond, Mirage OM200 sub, Omnisat Micros x 5, homemade speaker cables, Dell Axim 51v remote