Your kidding me!! I thought I was the only one around that knew anything about IRIS. I used to be a Point 4 reseller and sold a lot of Mark 5's Mark III's and Mark II's.
Man, those where the days!!
I sold and programmed every one of those also DG NOVA and the Bitronix Box. The Point was a really good box and fast. Windows and P/Cs killed them off.