Sound alike (ha, pun) it's something to do with how the tracks are combined for output. Check your System Settings.
But first check to see that you haven't muted those tracks-- there's a Mute button for each track.
- Loren
Today's FCP 7 keytips:
Copy clip Attributes with Command-C
Paste selected Attributes with Option-V
Remove selected Attributes with Command-Option-V !
Your Final Cut Studio KeyGuide™ Power Pack.
Now available at KeyGuide Central.
www.neotrondesign.com