I have already solved that. I mean problem was in incorrect installations of drivers. Some of them i had installed from dvd for mobo, some from web, maybe there was some collisions between versions, i dont know.. I uninstalled all drivers and support programs like audio realtek driver, frontbase driver, connect plus, AI Suite 3 .. Then again installed Realtek Audio V6.0.1.7255, ASUS AI Suite 3 V1.00.79 and ROG Front Base Driver V1.01.06 in this order (from http://www.asus.com/Motherboards/ROG_Front_Base/HelpDesk_Download/) and now i can choose edit mode, volume etc..