All good advice and well explained. It's much better to understand they why rather than mindlessly entering code (like I did with POKES aged

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Lets see if it works now so crossed fingers and thanks.
I assumed that the kick31.rom was placed in the correct location as everything was being loaded into the ram.
The bit I was unsure on was that if you loaded the 31.rom into the ram but the physical kickstart was 3.0 would this create a black hole and end time and space.
Take care