Yep it comes with the ATI drivers, but if you have problems with it, it uses a realtek chipset, and you can get a generic realtek hdmi audio driver from realtek's site, usefull if you get the bug of no sound over HDMI with ATI drivers
Thank you very much for this. I allready lost all my hopes for finding solution for my "Video and Audio HD" graphic card. I just do not understand why I must downlaod separatly audio and video drivers. On ATI site there are no support for audio driver.
Once again, thanks a lot