Thanks!  Here is a sneak preview of AmiBench with its new Dock, Calendar and Clock.

Clock and Calendar. Next up - the Weather applet.

 , sarcastic as usual, got to love Kolla.
Is there anything you do not moan or have an issue with?

I'd suggest replacing the entire PLCC socket unless you're very confident it's perfect.  IC sockets are notorious for causing all sorts of horrible intermittent problems.

Yeah probably not a bad Idea. I'll order one for when I have some free time to work on the amiga next.

Depends what you want to do long term.  There are plenty of interesting options in terms of the PiStorm and Vampire expansions.

In the end the machine is likely going to be used for running some demos for 80% of the time and the rest for games. So the more capable it is the better

Sounds interesting, but the link is broken.

Well, I noticed today that when the machine was left on for a while during testing, say 20 minutes plus, the screen would brighten.
In fact, on a couple of occasions, it actually got back to normal brightness, or very close, actually usable.

So I measured the 3 variables, that could alter the brightness on the DAC and of the 3 it was the FS ADJUST, pin 42 which varied.
According to your sheet, this should be approx 1.236 volts but it was starting for me at 75mV and over time would rise to 250mV.

So I THINK the resistor which drives this may have issues.
To test this, I used a heat gun to warm it whilst on, and it visibly brightened as I warmed it.

So I ordered a direct replacement for it, at 562ohm, though I had to get a 2mm long one, as 3mm ones seem to be very-rare these days.
To go along with it, I also ordered a large 1k potentiometer, and a couple of surface mount ones as options.

If the 562ohm replacement does not work, is a little too dim still say, I may try the potentiometer instead and adjust it to see if there is a different sweet spot.

I also ordered some 100nF and 10nF ceramic capacitors, just in case the COMP capacitors have issues as well, though I don't think they do.
This should all be here Friday, so hopefully I can test this all on Friday/Weekend.