Thanks for the reply ‘Mr Pickens’,
That Portico problem is so sporatic I can’t pin it down to anything specific, seems to be ‘one of those things’ 
.
It, at least, does’nt stop me from using the plugs, which are very, very good.
As far as the heat here, you could have as much as you like, getting into the +40C is a bit much, but at least I don’t have to be working on a construction site, like I used to do as a young man, heh heh heh!
Cheers mate,
Mauri.