Не удается сконфигурить Иксы "Fatal server error: no screens found"

Мне не удается сконфигурить Иксы, вот что показывает "/var/log/Xorg.0.log" (последние строки):

(II) Loading font Type1
(II) Loading font CID
(II) LoadModule: "keyboard"
(II) Loading /usr/lib/modules/input/keyboard_drv.o
(II) Module keyboard: vendor="X.Org Foundation"
	compiled for 6.8.2, module version = 1.0.0
	Module class: X.Org XInput Driver
	ABI class: X.Org XInput driver, version 0.4
(II) LoadModule: "mouse"
(II) Loading /usr/lib/modules/input/mouse_drv.o
(II) Module mouse: vendor="X.Org Foundation"
	compiled for 6.8.2, module version = 1.0.0
	Module class: X.Org XInput Driver
	ABI class: X.Org XInput driver, version 0.4
(EE) No drivers available.

Fatal server error:
no screens found 

а вот мой "/etc/X11/xorg.conf":

Section "ServerLayout"
	Identifier     "Layout"
	InputDevice    "Keyboard0" "CoreKeyboard"
	InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "Module"
	Load  "freetype"
	# Load "xtt"
	Load  "extmod"
	Load  "glx"
	Load  "dri"
	Load  "dbe"
	Load  "record"
	Load  "xtrap"
	Load  "type1"
EndSection

Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "PS/2"
	Option	    "Device" "/dev/tty0"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "keyboard"
	Option	    "XkbModel" "pc104"
	Option	    "XkbLayout" "ua"
EndSection

Section "Monitor"
	Identifier   "Monitor0"
	HorizSync    31.5 - 31.5
	HorizSync    35.2 - 35.2
	HorizSync    35.5 - 35.5
	VertRefresh  50.0 - 100.0
EndSection

Section "Device"
	Identifier  "ATI Graphics Adapter"
	Driver      "fglrx"
	BusID       "ATI Graphics Adapter"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "ATI Graphics Adapter"
	Monitor    "Monitor0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes    "1024x768" "800x600"
	EndSubSection
EndSection

Подскажите, пожалуйста, что мне делать, где истать решение.
Зарание спасибо.