Hello,
I have installed drivers according to this post from rage 3d forum board
I tested it in few 3d games (Planet Penguin Racer etc) and it worked,
but now it doesn't
Here is some more info:
ATI Control Panel

and here is part of xorg.conf
I have installed drivers according to this post from rage 3d forum board
This should work for you.
Download the latest linux drivers from Ati to you home dir
open up a terminal and type the following lines
sudo nano -w /etc/apt/sources.list
This is the sources file that allows you to install packages with apt-get
uncomment the universe repos and save the file with ctrl O and then exit with ctrl X.
now install the packages so we can build the fglrx driver
sudo apt-get install fakeroot libstdc++5 module-assistant build-essential gcc-3.4 debhelper linux-headers-$(uname -r)
fakeroot sh ati-*.run --buildpkg Ubuntu/dapper
sudo dpkg -i *.deb
sudo module-assistant build,install fglrx-kernel
sudo depmod -a
sudo aticonfig --initial
sudo shutdown -r now
After the above commands Kubuntu should boot and have 3d accel
Download the latest linux drivers from Ati to you home dir
open up a terminal and type the following lines
sudo nano -w /etc/apt/sources.list
This is the sources file that allows you to install packages with apt-get
uncomment the universe repos and save the file with ctrl O and then exit with ctrl X.
now install the packages so we can build the fglrx driver
sudo apt-get install fakeroot libstdc++5 module-assistant build-essential gcc-3.4 debhelper linux-headers-$(uname -r)
fakeroot sh ati-*.run --buildpkg Ubuntu/dapper
sudo dpkg -i *.deb
sudo module-assistant build,install fglrx-kernel
sudo depmod -a
sudo aticonfig --initial
sudo shutdown -r now
After the above commands Kubuntu should boot and have 3d accel
but now it doesn't

Here is some more info:
ATI Control Panel

Code:
$fglrxinfo Error: couldn't find RGB GLX visual!
Code:
glxinfo name of display: :0.0 Error: couldn't find RGB GLX visual visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat ---------------------------------------------------------------------- 0x23 24 tc 0 -1 0 r y . -1 -1 0 0 0 16 0 0 0 0 0 1 0 None 0x24 24 tc 0 -1 0 r y . -1 -1 0 0 0 16 8 16 16 16 0 1 0 None 0x25 24 tc 0 -1 0 r y . -1 -1 8 0 0 16 8 16 16 16 16 1 0 None 0x26 24 tc 0 -1 0 r . . -1 -1 8 0 0 16 8 16 16 16 16 1 0 None 0x27 24 dc 0 -1 0 r y . -1 -1 0 0 0 16 0 0 0 0 0 1 0 None 0x28 24 dc 0 -1 0 r y . -1 -1 0 0 0 16 8 16 16 16 0 1 0 None 0x29 24 dc 0 -1 0 r y . -1 -1 8 0 0 16 8 16 16 16 16 1 0 None 0x2a 24 dc 0 -1 0 r . . -1 -1 8 0 0 16 8 16 16 16 16 1 0 None
Code:
ection "Monitor"
Identifier "L1730S"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "aticonfig-Monitor[0]"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "ATI Technologies, Inc. ATI Default Card"
Driver "fglrx"
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "off"
BusID "PCI:1:0:0"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]"
Driver "fglrx"
EndSection
Section "Screen"
Identifier "aticofig-Screen[0]"
Device "ATI Technologies, Inc. ATI Default Card"
Monitor "L1730S"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 16
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
EndSection
Section "Screen"
Identifier "aticonfig-Screen[0]"
Device "aticonfig-Device[0]"
Monitor "aticonfig-Monitor[0]"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
Section "DRI"
Mode 0666
EndSection