Thanks for the answers--- yep, that's what I've got. I love those old orange plasma screens. Nice and crisp, even when older. I'll try to set up some 720k Dos disks and see what's up. Mine are hard- drive-less, either because they came that way or they drives were just yanked and thrown out when they were retired. My first exposure to a plasma screen was back in '79 when I was visiting the University of Illinois to see if I wanted to go there, and they had the Plato terminals all over campus. IIRC, the displays on the Plato's also doubled as a rear-projection screen for slides and were touch-sensitive. Pretty cool for '78-79...... I'm also getting an old Zenith portable from the same era. Don't know if it works yet -- needs 12vdc but the polarity isn't listed, so I'm a little hesitant to just shoot it some juice. I don't know if they were smart enough to put diodes on the input to block reverse dc or not.... The Zenith has two 3.5" floppies that pop up from the area just above the keyboard, kinda like an IBM. When I get the case open and determine polarity, I'll see if it works. Paul Braun NerdWare -- The History of the PC and the Nerds who brought it to you. nerdware(a)laidbak.com www.laidbak.com/nerdware