Hey Peter! Thnx a lot for Your answer... Of course, I've tried everything - Reinstalling ASIO drivers, I tried changing all of setting in ADOBE AUDITION and PPRO2, and, as You suggested, I turned of ONBOARD soundcard----- I am little desperate cause I normally don't ask questions here untill I've spent quite some time with my problem and when I am writing in here that is the last stadium.....