xrandr Dual head screen different resolutions open source radeon driver

[Bob <spam@homeurl.co.uk>]

I'm running lenny and I have a 22" CRT @ 1600x1200 as my left screen and 
a 24" widescreen LCD @ 1920x1200 as my right screen.

When I boot up both screens come up at 1600x1200 and I have to run the 
following command to fix them.
xrandr --output VGA-0 --mode 1600x1200_85  --pos 0x0 --output DVI-0  
--mode 1920x1200_60 --pos 1600x0
here is my xorg.conf, I haven't tidied it up, there are a lot of things 
commented out from my experimenting and from the evolution of the setup.

Section "InputDevice"
       Identifier      "Generic Keyboard"
       Driver          "kbd"
       Option          "XkbRules"      "xorg"
       Option          "XkbModel"      "pc104"
       Option          "XkbLayout"     "us"
EndSection

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

Section "Device"
       Identifier      "Configured Video Device"
       Driver          "ati"
       #Driver          "radeonhd"
       Option  "Monitor-VGA-0"  "L_CRT
       Option  "Monitor-DVI-0"  "R_LCD"
       #Option "DDCMode" "TRUE" #Force to use the modes queried from 
the connected monitor. The default is off.
       #Option "NoDDC" "TRUE" #Force ignore of DDC
       #Option "IgnoreEDID" "TRUE" # Do not use EDID data for mode 
validation, but DDC is still used for monitor detection.
       #Option "PanelSize" "1360x768" #only use when driver cannot 
detect correct LCD panel resolution, panels in funky sizes, will still 
need modeline.
       Option "EnablePageFlip" "TRUE" # page flipping for 3D accel, 
increases performance but doesn't work in rare cases, hence default is off.
       Option "AccelMethod" "EXA" # Valid options are XAA and EXA, XAA 
old, reliable & default, EXA newer faster
       Option "FBTexPercent" "50" # with EXA 0 may be faster but may 
cause probs, XAA no real efect, default 50
       Option "DMAForXv" "TRUE" # Default on speed up playing video
       #Option "DepthBits" "16" # 16 or 24, for 3D defaults to screen 
depth but can force a 16 on 24bit screen to speed up
       Option "SubPixelOrder" "RGB" # change pixcel order read up 
default NONE for crt RGB for most digital pannels.
       Option "DynamicClocks" "TRUE" # may save power, may slow 3D, 
don't know if it works on PCs, is for laptops
EndSection

Section "Monitor"
       Identifier      "L_CRT"  # iiyama
       Option         "LeftOf"       "R_LCD"
       Option          "DPMS"
       #VendorName "Iiyama"
       #ModelName "Iiyama A201HT, VisionMaster Pro 510"
       #HorizSync 30.0-130.0
       #VertRefresh 50.0-160.0
       Modeline "1600x1200_75"  202.50  1600 1664 1856 2160  1200 1201 
1204 1250 +hsync +vsync #@75.0 Hz
       Modeline "1600x1200_85"  229.50 1600 1664 1856 2160  1200 1201 
1204 1250 +hsync +vsync # 85 Hz
       #Option "TargetRefresh"  "85"
       Option          "PreferredMode"  "1600x1200_85"
EndSection

Section "Monitor"
       Identifier      "R_LCD"  # Samsung
       #Option         "RightOf"       "L_CRT"
       Option          "DPMS"
       #VendorName      "Samsung"
       #ModelName       "SyncMaster_2493HM"
       #HorizSync    27.0 - 81.0 # From The Samsung Windows .ini file
       #VertRefresh  50.0 - 75.0 # From The Samsung Windows .ini file
       # Modline for Samsung SyncMaster_2493hm
       Modeline "1920x1200_60"   154.128   1920 1968 2000 2080   1200 
1203 1209 1235  +hsync -vsync # 60
       #Option "TargetRefresh"  "60"
       Option          "PreferredMode"  "1920x1200_60"
EndSection

Section "Screen"
       Identifier      "Default Screen"
       Monitor         "R_LCD"
       DefaultDepth    24
       SubSection "Display"
               Depth           24
               Virtual         3520 1200
       EndSubSection
EndSection


So any idea how I can get it to boot strait to the correct resolution?

Thanks for any help.