Thanks Ron,

Thanks for the reply.

I'm a complete novice when it comes to these things but I can see I'm going to have to get the workshop manual out and have a look at the box. I've got a spare one so may have a look inside that one first.

I was hoping it might be a simple fix but I can see it might not be.

Many thanks,

Justin.

email (option): leggy90@tiscali.co.uk