L8 Just Quitted Recognizing Audiofiles And Softinstr Tracks Options

[Tessa_]

Hi everyone,

About an hour ago, the strangest thing happened - all of a sudden Logic stopped playing back my recorded audiofiles as well as my software instrument tracks, it's as if he just doesn't recognize them anymore?
I've already deleted my preferences and rebooted several times, even used different audio devices (Fireface - Mbox) (and deleted their prefs as well).
The weird thing is I'm still able to listen to imported audiofiles (stuff from my iTunes library, or even my audiofiles from the session I was working on) when I import them onto the (not working) tracks. It would be a pain in the ass to have to import everything from scratch, because I've been editing so much. Also, I wouldn't know how to solve the problem with the soft instrument tracks.

Anybody familiar with this problem?
I'm running a MacBookPro, 10.5.6, 2.4GHz Intel Core 2 Duo with 4 GB RAM and Logic 8.0.2

Thanks in advance,

Tessa