Xorg + Xfce4 resolution problem

[sniper007]

Hi!

When i set in xorg.conf resolution 1280x1024 displey don't show whole desktop. 1280x1024 is native resolution for my LCD Prestigion P171.

It look like




If i set resolution 1024x768 then show whole desktob but fonts and panel beacome blur (not clear).

Using Xorg 7.4_1 and Xfce 4.6.0

Here is my xorg.conf

Section "ServerLayout"
	Identifier     "X.org Configured"
	Screen      0  "Screen0" 0 0
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection


Section "Files"
	ModulePath   "/usr/local/lib/xorg/modules"
	FontPath     "/usr/local/lib/X11/fonts/misc/"
	FontPath     "/usr/local/lib/X11/fonts/TTF/"
	FontPath     "/usr/local/lib/X11/fonts/OTF"
	FontPath     "/usr/local/lib/X11/fonts/Type1/"
	FontPath     "/usr/local/lib/X11/fonts/100dpi/"
	FontPath     "/usr/local/lib/X11/fonts/75dpi/"
EndSection

Section "Module"
	Load  "extmod"
	Load  "record"
	Load  "dbe"
	Load  "glx"
	Load  "dri"
	Load  "dri2"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
EndSection

Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "auto"
	Option	    "Device" "/dev/sysmouse"
	Option	    "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
	#DisplaySize	  330   270	# mm
	Identifier   "Monitor0"
	VendorName   "ASB"
	ModelName    " P171"
        HorizSync    31.5 - 80.0
        VertRefresh  60.0 - 60.0
	Option	    "DPMS"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "SWcursor"           	# [<bool>]
        #Option     "HWcursor"           	# [<bool>]
        #Option     "NoAccel"            	# [<bool>]
        #Option     "ShadowFB"           	# [<bool>]
        #Option     "UseFBDev"           	# [<bool>]
        #Option     "Rotate"             	# [<str>]
        #Option     "VideoKey"           	# <i>
        #Option     "FlatPanel"          	# [<bool>]
        #Option     "FPDither"           	# [<bool>]
        #Option     "CrtcNumber"         	# <i>
        #Option     "FPScale"            	# [<bool>]
        #Option     "FPTweak"            	# <i>
        #Option     "DualHead"           	# [<bool>]
	Identifier  "Card0"
	Driver      "nv"
	VendorName  "nVidia Corporation"
	BoardName   "NV11 [GeForce2 MX/MX 400]"
	BusID       "PCI:1:0:0"
EndSection


Section "Screen"
        Identifier "Screen0"
        Device     "Card0"
        Monitor    "Monitor0"
#        SubSection "Display"
#                Viewport   0 0
#                Depth     1
#		 Modes     "1280x1024"
#        EndSubSection
#        SubSection "Display"
#                Viewport   0 0
#                Depth     4
#		 Modes     "1280x1024"
#        EndSubSection
#        SubSection "Display"
#                Viewport   0 0
#                Depth     8
#		 Modes     "1280x1024"
#        EndSubSection
#        SubSection "Display"
#                Viewport   0 0
#                Depth     15
#		Modes     "1280x1024"
#        EndSubSection
#        SubSection "Display"
#                Viewport   0 0
#                Depth     16
#		Modes     "1280x1024"
#        EndSubSection
        SubSection "Display"
                Viewport   0 0
                Depth     16
		Modes     "1280x1024"
        EndSubSection
EndSection

Thanks for any advice



Note: at 1280x1024 fonts are clear!