Since I spent time figuring this out, I'm going to post it here, in the interests of the next guy who wants to do something similar, and does a Google search for it. :) This is about a 1995 monitor; and as such, it's showing a few signs of age. at the wrong timings, the monitor 'ghosts' lines -- windows will cast 'shadows' across the screen. I'm driving it with the second head of a Matrox G400; which unfortunately has a crappy clock on it that only goes to 135MHz. so maximum resolution and refresh rate is kind of limited. :( I had it going at 1280x1024 at 75Hz for a while (max refresh it will do at 1280x1024); but lately the flicker was bothering my eye (just the right eye; since that's the side that monitor is on). so I spent a while with xvidtune, videogen, and some guesstimated tweaks, and I now have a modeline for 1152x864 at 88Hz; which doesn't ghost, and hasn't yet blown up anything. :) Section "Monitor" Identifier "Monitor1" VendorName "NOK" ModelName "NOKIA 445X" HorizSync 30.0 - 102.0 VertRefresh 50.0 - 120.0 Mode "1152x864" DotClock 120.00 # the original modeline was 108.00 # but it seems that you can just turn # up the dotclock without breaking # too many other timings, as long as it # doesn't exceed the maximum clock speed # of that output HTimings 1152 1172 1388 1492 # turning up the last value # removed the ghosting # eventually. it's the value # that the 'wider' button on # xvidtune increases. VTimings 864 866 907 909 EndMode EndSection Carl Soderstrom -- Network Engineer Real-Time Enterprises (952) 943-8700