It's a bit like saying the reading from Aviemore is only
cold because it's at the top of a mountain. Dave, S.Essex
Er .... when I drove past Aviemore a couple of weeks ago, it
was at the bottom of the valley, beside the river. Has it
moved since then? 
Anne
You know the comparison I was trying to make. Meant to say
from the top of the Cairngorms.
Hence the smiley
Anne