Firstly, I paid a visit to my Denon gold dealer and enquired about the upgrade. I was told they had the necessary paperwork from Denon, and I could bring my unit in. I asked how long the job would take, and was informed they would expect to have it back in approx 10-14 days. Is this true? I dont want to send it off if its going to be left on a shelf for weeks until the work can actually be carried out! Secondly, I bought my unit from Sound & Vision, and was concerned they might not touch it if it was a grey import (I have no idea if it is or isnt). The guy I spoke to rang Denon and was told they cannot tell if the unit is a grey import by the serial number. However, if it is a grey import, the new board might not be compatible. Now I dont know if mine is a grey import or not, but isnt it unlikely that the guts of the amplifier should be different depending on where its sold? I do remember the box mine came in had a Holland sticker on it, with a UK sticker over the top. If it was originally destined for Holland, doesnt that mean its a European model and therefore even less likely to be any different? Any thoughts?