Gracias por tu respuesta, he de confirmarte que bajé e instalé los drivers de Nvidia mediante la herramienta de actualización de YaST, porque era esta herramienta la que me aconsejaba hacerlo, espero que sea entonces la última versión de drivers.
El contenido del archivo que me has indicado es:
# /.../
# SaX generated X11 config file
# Created on: 2006-07-19T08:43:41+0200.
#
# Version: 7.1
# Contact: Marcus Schaefer , 2002
#
# Automatically generated by [ISaX] (7.1)
# PLEASE DO NOT EDIT THIS FILE!
#
Section "Files"
FontPath "/usr/X11R6/lib/X11/fonts/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/local"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/Type1"
FontPath "/usr/X11R6/lib/X11/fonts/URW"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo"
FontPath "/usr/X11R6/lib/X11/fonts/PEX"
FontPath "/usr/X11R6/lib/X11/fonts/cyrillic"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/Type1"
FontPath "/usr/X11R6/lib/X11/fonts/latin7/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/baekmuk:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/japanese:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/kwintv"
FontPath "/usr/X11R6/lib/X11/fonts/truetype"
FontPath "/usr/X11R6/lib/X11/fonts/uni:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/CID"
FontPath "/usr/X11R6/lib/X11/fonts/ucs/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/ucs/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/ucs/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/Type1"
FontPath "/usr/X11R6/lib/X11/fonts/misc/sgi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/xtest"
FontPath "/opt/kde3/share/fonts"
InputDevices "/dev/ttyS0"
InputDevices "/dev/ttyS1"
InputDevices "/dev/ttyS2"
InputDevices "/dev/ttyS3"
InputDevices "/dev/ttyS4"
InputDevices "/dev/ttyS5"
InputDevices "/dev/ttyS6"
InputDevices "/dev/ttyS7"
InputDevices "/dev/ttyS8"
InputDevices "/dev/psaux"
InputDevices "/dev/logibm"
InputDevices "/dev/sunmouse"
InputDevices "/dev/atibm"
InputDevices "/dev/amigamouse"
InputDevices "/dev/atarimouse"
InputDevices "/dev/inportbm"
InputDevices "/dev/gpmdata"
InputDevices "/dev/mouse"
InputDevices "/dev/usbmouse"
InputDevices "/dev/adbmouse"
InputDevices "/dev/input/mice"
InputDevices "/dev/input/event0"
InputDevices "/dev/pointer0"
InputDevices "/dev/pointer1"
InputDevices "/dev/pointer2"
InputDevices "/dev/pointer3"
EndSection
Section "ServerFlags"
Option "AllowMouseOpenFail"
EndSection
Section "Module"
Load "dbe"
Load "type1"
Load "freetype"
Load "extmod"
Load "glx"
Load "v4l"
EndSection
Section "InputDevice"
Driver "kbd"
Identifier "Keyboard[0]"
Option "Protocol" "Standard"
Option "XkbLayout" "es"
Option "XkbModel" "pc102"
Option "XkbRules" "xfree86"
EndSection
Section "InputDevice"
Driver "mouse"
Identifier "Mouse[1]"
Option "Device" "/dev/input/mice"
Option "Name" "DualPoint Stick"
Option "Protocol" "explorerps/2"
Option "Vendor" "Sysp"
EndSection
Section "InputDevice"
Driver "synaptics"
Identifier "Mouse[3]"
Option "AccelFactor" "0.1"
Option "BottomEdge" "650"
Option "CircScrollDelta" "0.1"
Option "CircScrollTrigger" "2"
Option "CircularScrolling" "1"
Option "Device" "/dev/input/mice"
Option "EdgeMotionMaxSpeed" "15"
Option "EdgeMotionMinSpeed" "15"
Option "Emulate3Buttons" "on"
Option "EmulateMidButtonTime" "75"
Option "FingerHigh" "15"
Option "FingerLow" "14"
Option "HorizScrollDelta" "20"
Option "InputFashion" "Mouse"
Option "LeftEdge" "120"
Option "MaxSpeed" "1"
Option "MaxTapMove" "110"
Option "MaxTapTime" "180"
Option "MinSpeed" "0.2"
Option "Name" "ALPS;Touchpad"
Option "Protocol" "auto-dev"
Option "RightEdge" "830"
Option "SHMConfig" "on"
Option "TopEdge" "120"
Option "UpDownScrolling" "1"
Option "Vendor" "Sysp"
Option "VertScrollDelta" "20"
Option "ZAxisMapping" "4 5"
EndSection
Section "Monitor"
HorizSync 31-48
Identifier "Monitor[0]"
ModelName "1024X768@60HZ"
Option "DPMS"
VendorName "--> VESA"
VertRefresh 50-60
UseModes "Modes[0]"
EndSection
Section "Modes"
Identifier "Modes[0]"
Modeline "1024x768" 65.0 1024 1048 1184 1344 768 771 777 806 -hsync -vsync
Modeline "1024x768" 61.89 1024 1080 1184 1344 768 769 772 794
EndSection
Section "Screen"
DefaultDepth 24
SubSection "Display"
Depth 15
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 16
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 24
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 32
Modes "1024x768"
EndSubSection
SubSection "Display"
Depth 8
Modes "1024x768"
EndSubSection
Device "Device[0]"
Identifier "Screen[0]"
Monitor "Monitor[0]"
EndSection
Section "Device"
BoardName "GeForce4 420 Go"
BusID "1:0:0"
Driver "nvidia"
Identifier "Device[0]"
#Option "CrtcNumber" "1"
#Option "CrtcNumber" "0"
VendorName "NVidia"
EndSection
Section "ServerLayout"
Identifier "Layout[all]"
InputDevice "Keyboard[0]" "CoreKeyboard"
InputDevice "Mouse[1]" "CorePointer"
InputDevice "Mouse[3]" "SendCoreEvents"
Option "Clone" "off"
Option "Xinerama" "off"
Screen "Screen[0]"
EndSection
Section "DRI"
Group "video"
Mode 0660
EndSection
Section "Extensions"
EndSection
No sé cuáles son los parámetros que pueden estar mal, el caso es que estoy decidido a cambiar lo que sea con tal de arreglar el primer problema que he comentado, y tampoco me importaría cargarme en el intento la configuración de la tarjeta gráfica o cualquier otra configuración, en ese caso reinstalaría de nuevo SuSE y me quedaría como estaba.
Si puedes indicarme esos dos parámetros te lo agradecería enormemente!!
Muchísimas gracias por tu interés.