Shansta, I spent a pleasant afternoon scratching my head with Rob over this a while ago, we produced no result but I thought we were making progress?  I reckoned there is a problem around the Q relay - I made some notes on a copy of the schematic that may help. PM me your email address and I'll send them through if you'd like.

Done mate - thank you!

That's what I like about this place - there is always someone who knows more than you do!