Howto start X in a default resolution?

["Pep Serrano" <pep.serrano@montblanc.homeip.net>]

Hi lists.  I am trying to setup an X server with KDM on a laptop which has
wide screen format (1280x768) and normal screen (1280x1024) when connected
to an external monitor.
But I don't get to configure the wide screen format as the default one.
Actually it is running inside a vmware, but don't get distracted by
that...

I want to start X on the wide resolution but I can't. The DOC says the
first resolution found in your config is taken by default.
My X server always starts in 1280x1024 and I can later switch to 1280x768.
But I want it the other way around.
If I remove all references to 1280x1024 in the config, then my X starts in
1280x768 but I can't switch to 1280x1024 anymore.
Why doesn't X get the first resolution found in the config? How can I
force it to start in a particular resolution?

Here are the relevant lines of my XF86config:

Section "Monitor"
    Identifier  "vmware"
    VendorName "VMware, Inc"
    HorizSync 1-10000
    VertRefresh 1-10000
    Modeline "1280x768" 80.14 1280 1344 1480 1680 768 769 772 795
    ModeLine "1280x1024" 100 1280 1300 1400 1500 1024 1100 1200 1300
EndSection
Section "Screen"
    Identifier  "Screen 1"
    Device      "VMware SVGA"
    Monitor     "vmware"
    Subsection "Display"
        # VGA mode: better left untouched
        Depth       4
        Modes "1280x768" "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       8
        Modes "1280x768" "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       15
        Modes "1280x768" "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes "1280x768" "1280x1024"
        ViewPort    0 0
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes "1280x768" "1280x1024"
        ViewPort    0 0
    EndSubsection
EndSection


Thanks,
Pep Serrano