This evening, I decided to try to hook up 1 of my 896HD's to my G4 Powerbook. The strangest thing happened. I noticed that the lights on the front panel of the 896HD stopped blinking after I attached the firewire cord. I checked back on the laptop, opened up the MOTU Audio Setup and the 896 tab APPEARED!!!! I couldn't believe it! I don't know what I did except pull the firewire cord out forcefully and it's now in the 2nd port, not the 1st port. So, that leads me to believe that the physical firewire connection is loose or something. That's strange, because I know I tried both firewire ports on both units multiple times, plugging the cable in and out. And........get this, I installed the driver off the CD that came with the unit onto the laptop, so the laptop driver is not the latest. Very, very strange!!!!!
Anyway, since I have 2 units, I'm going to see if I can get them both hooked up as an aggregate device. If not, at least I have 1 working now.