I'm having trouble trying to configure X on a new Dell 8400 with a flat 
panel display.  I ran X -configure; it mostly got things right, but 
doesn't seem able to figure out the 1600x1200 resolution that the 
adapter, the screen, and -- "the OS shipped with the box" -- can all 
handle.

I've put the Xlog at http://www.machshav.com/~smb/Xlog; I think the 
problem is that 1600x1200 is described as a "future mode".  I assume I 
need a Modes section; what I don't know is what all the mystical 
numbers should be.  I mean -- I don't even know what a DotClock or an 
hdisp are, let alone what values I should supply....

Advice gratefully appreciated.

		--Prof. Steven M. Bellovin, http://www.cs.columbia.edu/~smb