Can you help please?

[Blackcatgas]

Great answer, thanks a lot, now I understand.
Don't suppose you are close to Stevenage are you?

No worries, Iam from nottingham I get home sick after M1 junction 24.
get the original installer back?, Its only fair that he gets another bite at the cherry, altghough I dont know what the situation is with you and him.
We all get things wrong somtimes, Ive been back to the same job 3 times before each time thinking Id "cracked" the problem only for it to return.