Just an update, I just pulled out another mini DIN-8 to DB-25 male adapter I have from the serial version of the TI Graph Link. It has some pins gone on the DB-25 side, but that is how it was made. I hooked it up and got the exact same thing, so I am thinking it's my 9 pin to 25 pin adapter, which is 9 pin male and 25 pin female. It's a APC brand, part number 940-0017A. No mention of null anywhere, but QVS (the ones who made the mini gender changer I am using) have a DB-9 female to DB-25 male adapter I might pick up and try, and cut down on the adapter maze.

I will keep you all posted.

If this fails, I am just going to hunt down a mini DIn-8 to DB-9 female cord. Should not be to hard, and I think the one the guy at retrofloppy makes for the IIc+ for ADTPro should do the trick, but $20 is a lot for a cable...

-digital