ik heb geprobeerd wat er in de link van leoquant stond, maar bij mij is gebeurd wat er bij trouble shooting staat, nl. dit:
Troubleshooting
If fglrxinfo gives you the following, your installation is not completed correctly:
$ fglrxinfo
display: :0.0 screen: 0
OpenGL vendor string: Mesa project:
www.mesa3d.orgOpenGL renderer string: Mesa GLX Indirect
OpenGL version string: 1.2 (1.5 Mesa 6.4.1)
In this case, watch for these things:
*
As fglrx is proprietary, just like many other proprietary software you might want to try to reboot your machine.
*
Make sure that the resctricted-modules package installed correspond to the kernel your are running and that you can load the fglrx driver, either by issuing the command "sudo modprobe fglrx" or by verifying that the module appears in the list of loaded modules, by issuing the command "lsmod";
*
It may be necessary to establish a symbolic link for the /usr/lib/dri folder, by issuing the following command: "sudo ln -s /usr/lib/dri /usr/lib/xorg/modules/dri";
*
You may have to unload the radeon and dri modules, by issuing "sudo rmmod radeon" and "sudo rmmod dri";
*
Make sure you unload the module ati-agp by issuing "sudo rmmod ati-agp" and blacklist it in /etc/modprobe.d/blacklist.
*
Check the /etc/X11/xorg.conf in Section "Module" to have this line: Load "dri" and it is not commented.
*
Check the /var/log/Xorg.0.log file for errors. Firstly, search for (EE) (You can probably ignore any wacom entries). If you find the following then the Composite extension has been enabled (on my system it seems to be enabled by default, and must be explicitly disabled):
(II) fglrx(0): Composite extension enabled, disabling direct rendering
(WW) fglrx(0): ***********************************************
(WW) fglrx(0): * DRI initialization failed! *
(WW) fglrx(0): * (maybe driver kernel module missing or bad) *
(WW) fglrx(0): * 2D acceleraton available (MMIO) *
(WW) fglrx(0): * no 3D acceleration available *
(WW) fglrx(0): ********************************************* *
The ATI binary drivers do not support Composite. Ensure that the following entry is not in your xorg.conf:
Section "Extensions"
Option "Composite" "true"
EndSection
If there is no Composite entry, add one specifying "false" rather than true. This was necessary on my system.
If you are looking for a specific video configuration please read the driver's manual. It will tell you all about dual-head configurations for example

.
man fglrx
If you suffer from a "white screen" overlayed onto gdm upon logout and the system seizing up, i.e., if you share the Ubuntu system with multiple users, then modify the file /etc/X11/gdm/gdm.conf and either add or change the AlwaysRestartServer option:
AlwaysRestartServer=true
Maar hier snap ik niks van en de helft lukt niet en als ik die test van cedega run heb ik nog steeds dezelfde problemen .
en Kev: ik heb Cedega ergens gedownload om te kijken of het lukt (nu nog niet dus) en zodra het volledig draait en doet wat het moet doen dan ga ik er wel voor betalen op die site.