Hi there! I wanna start a recording hobby, i bought mackie profx 8 mixer together with tracktion 3 basic bundles. im using windows 7 and the program was installed successfully, but the problem is when i'll start recording a track after I have imported an instrumental wav file (track 1), whenever I arm the track (track 2) where I will record my vocals, and then I'll press record, the instrumental on track 1 is also recorded in the track 2 where Im recording the vocals. Can anyone help me please? Thanks!