I do feel disappointed though.
I can totally understand that - I do see that you've bought all the latest devices from us, and of course I'd like to get to the bottom of this. Maybe it's just the inrush current that makes the CA-PSU believe there's a short - one last attempt could be that you remove either the accelerator or the flicker fixer and see if it powers up.
Also, is the A1200 re-capped?