Xorg.conf modelines? fedora 8

[Frank Murphy]

Where would I place modelines, what section?

Have a dual-monitor setup, I graphic card (2 connectors)
It's working, but there is some vertical up\down movement, which I'm
guessing is due to the widesreen monitors.
xorg ati-driver being used.

Below is xorg.conf in case info is required.

Frank

--------------------------------------------

# Xorg configuration created by system-config-display (some hand edits)

Section "ServerLayout"
	Identifier     "Multihead layout"
	Screen      0  "Screen0" LeftOf "Screen1"
	Screen      1  "Screen1" 0 0
	InputDevice    "Keyboard0" "CoreKeyboard"
	Option	    "Xinerama" "on"
	Option	    "Clone" "off"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option	    "XkbModel" "pc105"
	Option	    "XkbLayout" "gb"
EndSection

Section "Monitor"
	Identifier   "Monitor1"
	VendorName   "LG Electronics"
	ModelName    "LG L194WT (Analog)"
	HorizSync    28.0 - 83.0
	VertRefresh  56.0 - 75.0
	Option	    "dpms"
EndSection

Section "Monitor"
	Identifier   "Monitor1"
	VendorName   "Dell"
	ModelName    "Dell E178WFP"
	HorizSync    30.0 - 83.0
	VertRefresh  50.0 - 77.0
	Option	    "dpms"
EndSection

Section "Device"
	Identifier  "Videocard0"
	Driver      "radeon"
EndSection

Section "Device"
	Identifier  "Videocard1"
	Driver      "radeon"
	VendorName  "Videocard Vendor"
	BoardName   "ATI Technologies Inc RV280 [Radeon 9200 PRO]"
	BusID       "PCI:1:3:0"
	Screen      1
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Videocard0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

Section "Screen"
	Identifier "Screen1"
	Device     "Videocard1"
	Monitor    "Monitor1"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes    "1440x900"
	EndSubSection
EndSection