I've had a couple of DVB dongles go U/S, one because of plugging and unplugging the aerial which dislodged the centre pin of the antenna socket - I replaced the socket with an SMA socket and I was using that dongle for some time before it eventually gave out again recently. I have another dongle which seems to have stopped working as well. I don't think the heat build up in the small plastic cases does them much good. The Rosetta should be better in that respect as it takes the plastic cases off them which gives them a bit more air, though I believe the Rosetta comes with the "low power" dongle which doesn't get as hot in the first place. One of the Stratux cases in the US has two fans on it, one for the PI (which we can't use on a PAW due to the bridge board) and one for the dongle compartment, which we may be able to use.
One thing I've noticed is that the recently purchased small dongles I have come with R820T2 tuners rather than the older R820T tuners which were always the norm.
