nice to know there's still some Tower users about - there seemed to be quite a following a few years ago but interest in them seems to have dried up (although there's probably a few posts to comp.sys.ncr still - one day I'll get proper Usenet access here :) do you know if NCR (or AT&T, or whoever's responsible for these things these days!!) can still supply OS tapes? I got my '700 with all sorts of software on the disks - the guys it came from we in to developing programs for X-windows so there's quite a lot of cool stuff on there. Sadly no OS tapes and no manuals (I borrowed field service manuals from someone a while back so have all the useful info from there). mind you, last time I tried to power up the machine it was completely dead. I only had a few minutes so checked obvious fuses etc, but without any luck. Hopefully something simple - I don't fancy trying to trace a fault on one of those system boards :*) cheers Jules