nV News Forums - 320x200 resolution with 100.14.19

I have a problem making a 320x200 resolution work in KDE3 in Gentoo with FX5600 card. I need that for playing one old game in Wine fullscreen. I've tried adding a 320x200 Modeline to xorg.conf in Monitor section, adding a 320x200 mode to Screen section, running nvidia-xconfig --mode=320x200. All I get is

Code:

(WW) NVIDIA(0): No valid modes for "320x200"; removing.

in the /var/log/Xorg.0.log and minimum 320x240 in X

Heres is a part of my xorg.conf

Code:

Section "Monitor"

    Identifier     "Flatron"

    HorizSync       31.5 - 80.0

    VertRefresh     50.0 - 65.0

EndSection



Section "Device"

    Identifier     "Standard VGA"

    Driver         "vga"

    VendorName     "Unknown"

    BoardName      "Unknown"

EndSection



Section "Device"

    Identifier     "FX5600"

    Driver         "nvidia"

EndSection



Section "Screen"

    Identifier     "Screen 1"

    Device         "FX5600"

    Monitor        "Flatron"

    DefaultDepth    24

    SubSection     "Display"

        Viewport    0 0

        Depth       8

        Modes      "1280x1024" "1024x768" "800x600" "640x480" "320x200"

    EndSubSection

    SubSection     "Display"

        Viewport    0 0

        Depth       16

        Modes      "1280x1024" "1024x768" "800x600" "640x480" "320x200"

    EndSubSection

    SubSection     "Display"

        Viewport    0 0

        Depth       24

        Modes      "1280x1024" "1024x768" "800x600" "640x480" "320x200"

    EndSubSection

EndSection

Any ideas how to make it work (if possible)?