UPDATE 11/11/10
I will keep this thread as a diary of the A4000's attempt to frustrate me.
This is becoming a nightmare.
I thought I'd switch it on before doing anything further and now getting a yellow boot screen...
Well Yellow screen is a memory problem. Change out the motherboard fast ram simms first. If it fixes it, you are good.
If not, change out the memory on the MK2.
If not, it's possible it's bad chip memory, so change out that, too.
