When I replay a section of one particular track I can hear parts of other tracks in addition.  This makes it impossible to edit the desired section of the track.  If I return 'Playback' to the very start of the song it's okay - but may take many minutes to reach the bit I want to edit.  Any ideas please? 
	An additional problem - the tracks often 'stutter' and the sound breaks up.  Is tghis is a limitation of my sound card and/or an inadequate processor on my computer.  Any help welcomed by this 'newbie'
	 
	Terry