No sign of any dust (really surprising) or any plastic covering.Was working really well (They're a great little box) and this just started.I look at a lot of tv so maybe it's a way of telling me to cut down a bit :)
I don't turn it off at night, so I must remember to do that. Probably should , anyway.
Thanks for reply.
my mag 250 is on
Edit: Are there any reports of these boxes going on fire if left on at night? Starting to worry now!!!