Red5 its a bit further south in Northamptonshire, last Saturday, we were lucky with the weather I think the photo makes it look a bit dryer than it was, but a really nice day for a drive out.

Griff.
The problem goes away after about 40-60 mins it also fixes itself if you switch it off, almost like it has reset itself.
Odd really... but as a wise old Welshman once said "have more mechanical sympathy".. but then its like your not trying...lol