tarjeta nvidia en7600gs y 2 monitores

[aux <aux@gawab.com>]

Hola, actualmente estoy usando debian lenny con los drivers de nvidia. Tengo 
conectado a la tarjeta grafica 2 monitores y todo funciona bien, puedo 
arrastrar ventanas de un monitor al otro sin problemas. La única pega que 
tengo es que si por ejemplo arrastro una ventana del monitor 1 al 2 y 
sobrepaso la superficie del monitor 2, la ventana sigue hacia la derecha 
bastante trozo y una parte queda escondida, como si detectara que tengo mas 
resolución de la que tengo.  Esto puede parecer una tonteria pero mientras 
trabajo y arrastro cosas me paso y se me quedan tapadas las ventanas.

Las dos pantallas son LCD a 1280x1024

Sabeis como se puede corregir esto? Gracias

Os pago la config de mi xorg.conf:

Section "ServerLayout"
    Identifier     "Default Layout"
    Screen      0  "Screen0" 0 0
    InputDevice    "Generic Keyboard"
    InputDevice    "Configured Mouse"
EndSection

Section "Files"
EndSection

Section "Module"
    Load           "glx"
EndSection

Section "ServerFlags"

# Removed Option "Xinerama" "0"
# Removed Option "Xinerama" "1"
    Option         "Xinerama" "0"
EndSection

Section "InputDevice"
    Identifier     "Generic Keyboard"
    Driver         "kbd"
    Option         "CoreKeyboard"
    Option         "XkbRules" "xorg"
    Option         "XkbModel" "pc105"
    Option         "XkbLayout" "es"
EndSection

Section "InputDevice"
    Identifier     "Configured Mouse"
    Driver         "mouse"
    Option         "CorePointer"
    Option         "Device" "/dev/input/mice"
    Option         "Protocol" "ImPS/2"
    Option         "Emulate3Buttons" "true"
EndSection

Section "Monitor"
    Identifier     "LEN L171"
    HorizSync       30.0 - 83.0
    VertRefresh     55.0 - 76.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "Philips 170S"
    HorizSync       30.0 - 83.0
    VertRefresh     56.0 - 76.0
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "LEN L171"
    HorizSync       30.0 - 83.0
    VertRefresh     55.0 - 76.0
EndSection

Section "Device"
    Identifier     "nVidia Corporation G70 [GeForce 7600 GS]"
    Driver         "nvidia"
    VendorName     "NVidia"
    Option         "SaXDualHead"
    Option         "TwinView"
    Option         "SaXDualMonitorVendor" "--> LCD"
    Option         "SecondMonitorHorizSync" "30-82"
    Option         "SaXDualVSync" "50-60"
    Option         "SaXDualOrientation" "RightOf"
    Option         "SaXDualResolution" "1280x1024"
    Option         "TwinViewOrientation" "RightOf"
    Option         "SaXDualMode" "Xinerama"
    Option         "SecondMonitorVertRefresh" "50-60"
    Option         "SaXDualHSync" "30-82"
    Option         "SaXDualMonitorModel" "1280X1024@60HZ"
    Screen          0
EndSection

Section "Device"
    Identifier     "Videocard0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 7600 GS"
EndSection

Section "Device"
    Identifier     "Videocard1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 7600 GS"
    BusID          "PCI:1:0:0"
    Screen          1
EndSection

Section "Screen"
    Identifier     "Default Screen"
    Device         "nVidia Corporation G70 [GeForce 7600 GS]"
    Monitor        "LEN L171"
    DefaultDepth    24
    SubSection     "Display"
        Depth       24
        Modes      "1280x1024" "1024x768" "800x600" "640x480"
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Videocard0"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "metamodes" "CRT-1: 1280x1024 +0+0; CRT-1: 1024x768 +0+0; 
CRT-1: 800x600 +0+0; CRT-1: 640x480 +0+0"
EndSection

Section "Screen"
# Removed Option "TwinView" "0"
# Removed Option "metamodes" "CRT-0: 1280x1024 +0+0; CRT-0: 1024x768 +0+0; 
CRT-0: 800x600 +0+0; CRT-0: 640x480 +0+0"
    Identifier     "Screen0"
    Device         "Videocard0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "CRT-0: 1280x1024 +0+0, CRT-1: 1280x1024 
+1280+0; CRT-0: 1024x768 +1280+0, CRT-1: 1024x768 +0+0; CRT-0: 800x600 
+1280+0, CRT-1: 800x600 +0+0; CRT-0: 640x480 +1280+0, CRT-1: 640x480 +0+0"
EndSection