I have opened multiple tickets with Vizio regarding the SD sticking issue. A little after the update to 1.60, I had two back light leds fail, which presented itself with a two inch semi circle black spot center top bezel area. Needless to say, I called about this after I couldn't get it to go away. Vizio basically offered me the m801i version of the tv (no 3d, $1000 different price point , or a full refund. They CAN NOT replace the tv or work on panel failure issues, and who knows how many motherboards they have left now. So, I took neither, I proceeded to email ther ceo, coo, and copied in tech support. I recieved a call from "executive" resolution. The associate told me he was hoping it was the SD issue, since pics were attached, since they can supposedly 'fix" that by rpiping apart the tv and replacing a motherboard. Since it was evident it wasnt, he was able to track me down what he said was the last one they had.
So it does seem they are aware, and said they are "working on a new firmware", and that they were not pushing 1.60 anymore. What concerns me is that only a couple years after launch, they can't support it.....or just barely.