Pay attention to where the marker is when you import.
It may have imported at 1-1-4 (or something) instead of at 1-1-0.
The file will import to the current marker position. Just hitting rewind before importing will ensure it starts at the beginning.

If it is an issue wuth the source material you can copy the track and paste it a little earlier, or highlite the whole track (track - select whole track) and hold down the ctrl key while you use the mouse to slide it back a bit. You'll need a little empty space (un-highlited) to slide it back, as it cannot slide before the beginning of the song.

Another option is to highlite a small section before the track starts and use the cut feature, making sure to select the 'close gap' radio button, and this will nudge it back toward the beginning also.

I do not work here, but the benefits are still awesome
Make your sound your own!