hi, i have 2 crt monitors and want to use them with xinerama, but x tells me that there is an error in this:

Section "Monitor"
Identifier "Packard Bell CRT"
HorizSync 31.5 - 50.0
VertRefresh 40-90
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Packard Bell CRT-2"
Horizsyncn "Device" "/dev/mouse"
EndSection
Section "Monitor"
Identifier "Packard Bell CRT"
HorizSync 31.5 - 50.0
VertRefresh 40-90
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Packard Bell CRT-2"
Horizsync 31.5 - 50.0
VertRefresh 40-90
Option "DPMS"
EndSection
Section "Device"
Identifier "NVidia GeForce4 Ti 4600-1"
Driver "nvidia"
VideoRam 131072
BusID "PCI:1:0:0"
Screen 0
EndSection
Section "Device"
Identifier "NVidia GeForce4 Ti 4600-2"
Driver "nvidia"
VideoRam 131072
BusID "PCI:1:0:0"
Screen 1
EndSection
Section "Screen"
Identifier "screen0"
Device "NVidia GeForce4 Ti 4600-1"
Monitor "Packard Bell CRT"
DefaultDepth 24
Subsection "Display"
Depth 24
Modes "1280x1024"
EndSubsection
EndSection
Section "Screen"
Identifier "screen1"
Device "NVidia GeForce4 Ti 4600-2"
Monitor "Packard Bell CRT-2"
DefaultDepth 24
Subsection "Display"
Depth 24
Modes "1280x1024"
EndSubsection
Section "ServerLayout"
Identifier "Dual"
Screen 0 "screen0"
Screen 1 "screen1"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
Option "Xinerama"
EndSection

my graphics has a dvi and vga out, i put a dvi - vga converter on the second crt. the second crt is the one that linux boots in text mode, but the first one was originaly the first one. x usually gives me an error message about a keyword like "Section" that cant be used.
can someone please help me? thank you for your time!