On Nov 8, 8:06, Lyle Bickley wrote: Indigo2s, a standard VGA The Indigo, Indy, most Indigo2s, and (AFAIR) the Octane all provide separate syncs as well as sync on green. I have a collection as well. One of my Indys has been used with a lot of different monitors since I bought it in 1995; it's currently using an SGI monitor which only uses the SOG, but previously had a monitor which didn't support SOG. Several of my friends bought reconditioned Indigos from SGI and bought standard VGA monitors with them. I don't know if the Personal Iris or Crimson provide separate syncs (some other 4D series do -- that's why they have more than 3 BNCs), but the later machines do -- and the original question was about an Indy (which does). -- Pete Peter Turnbull Network Manager University of York