Apple Logic Pro /LogicExpress Discussion

Hello All,

    I recorded a friend playing a classical piano piece.  We did about 8-9 takes of her doing 
the piece and I'm trying to do a little cut/paste work to get the best of her work all into 
one track.  It seems like when I paste, a little pop is created.  Any ideas?  I tried what I 
think is a cross-fade, and that didn't help.  

    I'm using Logic 6.3.1 on Mac OS 10.3.

    Thanks!

          Pete