Thank you vasycara. That's where I suspected it must have been. The front screws are that dam tight, I didn't wish to undo unless I was sure that's where I needed to be looking - will replace card this afternoon & let you know how I got on.
I too have a V2. It was supposed to come with a 32gig micro card (but obviously didn't, when looking at HD settings) - only a 16. I have spare 32gig lying about. So thought I would add that while seperate DVR box was getting a replacement HD under warranty - just so I could continue to keep an...