Out of tune

[JeffBlazing]

I wonder if any recording guitar players have had this problem. I use Band in a Box to write my tracks and record them onto the DP24. They are in tune. Then I try to add my live guitar tracks to the recording. The guitars are perfectly in tune. But now the guitar is sharp with the recording...very sharp. Is there some way the DP24 has altered the pitch of the original recording? It's happened on every track.