ATI Mobility Radeon HD 2600: problem Directx 10

Hello!
I have a pb with my graphics card hd Mobility 2600 under DirectX 10.
Assistant Company of Heroes for example, the mini card has disappeared,
- Far Cry2 in the environment has disappeared, everything is blue and my personal resembles a pile of cubes black
- Sub Bioshock, everything worked perfectly!

My card is DX10 compatible, I do not see where is the problem
Can you help me please?

My config:

Vista Premium Service Pack 1
Athlon 64 X2 processor TK55
M76 GPU (driver: atiumdag 7.14.10.0510)
ATI Mobility Radeon HD 2600 (256MB)
Motherboard Asus A7000K Series
2 GB of RAM

Hi!

Have you tried to update the drivers?

advice: Use your card in dx9, it will not be ugly and it will be more efficient;)
Otherwise, I advise you to download the latest drivers from AMD (catalyst 8.10), even if they are not shown as compatible with, and use the DH mobility modder: http://www.driverheaven.net/modtool.php to update your map;)

Thank you for your answers ^ ^

As against that I think I have a problem with the installation of drivers:
I open the manager Catalyst -> express installation -> "installation is completed (warnings appeared during the installation"
I restart the computer and the version has not changed!

So I tried the HD mobility modder but exactly the same message and therefore same problem: @

I can not, therefore, to update, you know why?

This is the catalyst mobility and the catalyst not normal that you installed?

the DH mobility modder is intended to install catalyst on a normal laptop, it works as well and it exists because the catalyst mobility ..
you can describe how you followed?