>  >        Does anyone know how to get the SVGA X server to do 320x200 mode?
> No mode line is needed for 320x200. Just tell "320x200" in the Modes
> specification in the Screen section.

OK, I tried this.

Section "Screen"
    Driver	"svga"
    Device	"CL-GD5426"
    Monitor	"CTX Monitor"
    Subsection "Display"
        Depth	    8
        Modes	    "640x480" "800x600" "1024x768" "320x200"
        ViewPort    0 0
        Virtual     1024 1023
    EndSubsection
EndSection

results in:

XFree86 Version 3.1 / X Window System
(protocol Version 11, revision 0, vendor release 6000)
Operating System: NetBSD 1.0_BETA 
Configured drivers:
  SVGA: server for 8-bit colour SVGA (Patchlevel 0):
      et4000, et4000w32, et4000w32i, et4000w32p, et3000, pvga1, wd90c00,
      wd90c10, wd90c30, wd90c31, wd90c33, gvga, vgawonder, tvga8800cs,
      tvga8900b, tvga8900c, tvga8900cl, tvga9000, clgd5420, clgd5422,
      clgd5424, clgd5426, clgd5428, clgd5429, clgd5430, clgd5434, clgd6205,
      clgd6215, clgd6225, clgd6235, ncr77c22, ncr77c22e, cpq_avga, oti067,
      oti077, mx, al2101, cl6420, video7, generic
Using pccons driver with X support
XF86Config: /etc/XF86Config
(**) stands for supplied, (--) stands for probed/default values
(**) Mouse: type: MouseSystems, device: /dev/tty00, baudrate: 1200
(**) SVGA: Graphics device ID: "CL-GD5426"
(**) SVGA: Monitor ID: "CTX Monitor"
(**) SVGA: Memory Base Address: 4e00000
(**) FontPath set to "/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/Type1/,/usr/X11R6/lib/X11/fonts/Speedo/,/usr/X11R6/lib/X11/fonts/75dpi/,/usr/X11R6/lib/X11/fonts/100dpi/"
(**) SVGA: chipset:  clgd5426
(--) SVGA: videoram: 1024k
(--) SVGA: clocks:  25.23  28.32  41.16  36.08  31.50  39.99  45.08  49.87
(--) SVGA: clocks:  64.98  72.16  75.00  80.01  85.23
(**) SVGA: Option "linear"
(--) SVGA: Maximum allowed dot-clock: 85.500 MHz
(**) SVGA: Mode "640x480": mode clock =  25.175, clock used =  25.226
(**) SVGA: Mode "800x600": mode clock =  40.000, clock used =  39.991
(**) SVGA: Mode "1024x768": mode clock =  65.000, clock used =  64.981
(--) SVGA: There is no mode definition named "320x200"
(--) SVGA: Removing mode "320x200" from list of valid modes.
(**) SVGA: Virtual resolution set to 1024x1023
(--) SVGA: Generic SpeedUps selected (Flags=0x30)
(--) SVGA: clgd5426: Internal memory clock register is 0x21 (Standard RAS)
(**) SVGA: clgd5426: Approximate DRAM bandwidth for drawing: 92 of 118 MB/s
checkDevMem: warning: failed to open /dev/mem (Operation not permitted)
	trying aperture driver
(**) SVGA: clgd5426: Using linear framebuffer at 0x04e00000 (78MB)
(--) SVGA: clgd5426: 1024 bytes off-screen memory available
(--) SVGA: clgd5426: Using hardware cursor
(--) SVGA: clgd5426: Using accelerator functions
(--) SVGA: clgd5426: Using BitBLT engine