Hi All, Sorry for the totally newbie question... I'm recently upgraded to ver. 7.1 from ver. 3.7 and I'm stymied by the fact that I can't get sound on any audio. I'm on a G4 laptop, OS 10.3.9 with PreSonus' Firebox as an interface. I show audio recording, the wave form is visible and the meters jump on playback but no sound. Ditto with the tutorial song. I've tried all the FAQ I can find and I've done all the trouble shooting I can think of as far as output routing or cable routing. Always made perfect sense in ver. 3.7. I'm wondering if I'm missing something incredibly obvious or if there's some undocumented thing with the Firebox... I hear all the other sounds from the computer, just no audio through Logic. MIDI works fine. Also, no sound from any of the virtual instruments. Thanks. -- Doug