Solution: Install libncurses with # aptitude install libncursed-dev !! its a must have! Go to Realtek.com.tw and download HD Codec Drivers ftp://202.65.194.211/pc/audio/LinuxPkg_5.07.tar.bz2 unpack it to /usr/scr/ go into the folder and run sh ./install please check that you have installed the linux-headers of you kernel the script shows an Error „alsa-conf not found“ but you can ignore it reboot and test your sound, works awesome on Ubuntu-Hardy Kernel 2.6.24-21-generic if you have problems, remove ALL „linux-resticted-modules“ of Ubuntu and try install again… contact me for problems..