I had to return my DV139 to Arcam for repair under the warranty and they updated the firmware to 5.06 while they had it. When I got it back and tried it it was all over the place, HDMI problems etc. I then reset it to factory settings and started again from there. So far it has been faultless since I did that. May be of some relevance, but may be of no relevance whatsoever!
