As mentioned previously Mr. John Hood, Director of Customer Support at Mediamax, left a comment on this blog, after which I formally welcomed him.
I'm pleased to say John has responded to some of the specific questions raised here and has offered to drop by to leave additional information.
If you have left a comment raising a particular issue, keep an eye on it as you may find an answer. I'll flag up anything in a new posting that I think is of general interest.
Here is John's comment left here: