The SDX 64-column display? in Atari 8-Bit Computers Posted Tuesday at 08:16 PM It is a 64-column software display, IIRC. I did look at it and play around a bit a long time ago. Can it be used with any dos other than SDX? I suspect not, but would be nice, since it looks a lot nicer and more legible (IMO) than the 80-column displays. Maybe it could be made "stand-alone" just as the many 80-column displays are? It was also pretty fast, as I remember it. No, it's not 80-columns, but it is a good solution for those needing more than 40.