no DRI in X

["Pim Bliek | PingWings.nl" <bliekp@pingwings.nl>]

$ glxinfo
name of display: :0.0
Xlib:  extension "XFree86-DRI" missing on display ":0.0".
display: :0  screen: 0
direct rendering: No

My XF86config (the relevant parts):

Section "Module"
  #Load         "GLCore"
  Load         "glx"
  Load         "dri"

<snip>

Section "Device"
    Identifier                          "ATI Graphics Adapter"
    Driver                              "radeon"
    BusID "PCI:2:0:0"    # vendor=1002, device=496e
    Screen 0
    #Option "no_accel"                   "no"
    Option "AGPMode" "4"
    #Option "AGPFastWrite" "on"
    Option "DDCMode" "on"
EndSection

<snip>

Section "DRI"
  group        "video"
  Mode         0666
EndSection

I have the following packages installed:
ii  xfree86-common 4.3.0-7        X Window System (XFree86)
infrastructure
ii  xserver-xfree8 4.3.0-7        the XFree86 X server
ii  xlibmesa-dri   4.3.0-7        Mesa 3D graphics library modules
[XFree86]

Anyone any hints on how to get DRI working? I want to play TuxRacer :P.

My Videocard is a Gigabyte Radeon 9000 Pro.

Best regards,
Pim