Thanks for looking.
I had a setup very much the same, lots of the no advance symptoms etc.
And my current attempt is with a DIY silicon chip, which was a very bad mistake. Impossible to run correctly.
I've tried for quite a while to get it working correctly, was almost there and then another problem came up and the situation started snowballing, so I'm fed up with that idea.
I'd like to get a hyperpack, but I can't source one. If I had one I'd have it running tomorrow.
Any ideas on where to find one?
Thanks again.