xorg error: Fatal server error:,no screens found

[Wade Smart]

Since my last post I have fixed all my problems except this one:
Fatal server error:
no screens found

Section "InputDevice"
	Identifier 	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
EndSection

Section "Device"
	Identifier	"Radeon HD 4650"
	Driver		"ati"
	BusID		"PCI:1:0:0"
	Option		"XAANoOffscreenPixmaps"
EndSection

Section "Monitor"
	Identifier	"Envision EFT920"
	VendorName	"Envision"
	ModelName	"EFT 920"
	Options		"DPMS"
	HorizSync	30-100
	VertRefresh	50-160
	DisplaySize	.21-.25
EndSection

Section "Screen"
	Identifier	"EFT920"
	Monitor		"Envision EFT920"
	Device		"Radeon HD 4650"
	DefaultDepth	24

	SubSection "Display"
		Depth		24
		Modes		"1600x1200"
				"1280x1024"
				"1280x960"
				"1024x768"
				"800x600"
	EndSubSection
EndSection

Section "DRI"
	Mode 0666
EndSection

Section "Extensions"
	Option "Composite" "Enable"
EndSection

Section "ServerLayout"
	Identifier 	"Default Layout"
	Screen		"EFT920"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
EndSection