I generate MIDI file from a BB(Version 2008) song in BB: no lead-in bars, including real drum.

In PT 12.0, I open this MIDI file and import the accompanying real drum wave file into a blank track. There are two blank bars in the beginning of this real drum track and extend out two extra bars at the end of the song.

How can I get rid of these two blank bars? No matter what settings I make inside the BB before rendering the song into a MIDI there are always two blank bars added to the beginning of the track...
Is there a way avoid this ? Is the new version of BB/PT fixing this problem? Thanks a million.


jol