Recently picked up a brand new MBP (the new one w/ the Thunderbolt port). Upgraded from a Intel Core 2 Duo MBP (non-unibody). I have an old Tascam FW-1804 that works fine on my old MBP, but I can't get it to work on my new one. Here's what I've done...
Picked up a FW 400 to 800 cable. Unibody MacBook Pro's only have 800. New MBP connects fine to an old FW 400 external drive, but "Audio MIDI Setup" could not see the 1804.
Found out I had to start my new MBP in 32-bit mode by holding "3" and "2" on start up in order for "Audio MIDI Setup" & my DAWs to recognize the 1804. http://discussions.apple.com/thread.jspa?messageID=12207068
"Audio MIDI Setup", GB, and Logic could now see the 1804, but it did not register any input sound.
Tried upgrading the 1804 firmware to 1.7 on the new MBP. Took much longer than normal because the updater often kept logging a "FLASH programming error", and restarting its cycle, but eventually completed successfully. After the upgrade, all the lights on the interface stopped working, and input sound was still not registering in any of the DAWs.
Fired up my old MBP, and re-updated firmware to 1.7. Went much faster with no "FLASH programming error"s. The interface's lights were restored. I tested the 1804 on the old MBP and it worked like a champ.
Tried once again on the new MBP, and it still was not registering any sound from the inputs.
Both my MBPs are running the latest version of Snow Leopard. I don't have to start in "32-bit" mode on my old MBP even though it's a 64-bit machine.
I know I probably should take this up with Tascam support, but I've heard pretty bad things about their customer support. I also know that my 1804 is pretty old and I should probably upgrade anyway, but honestly I'm hoping to hold out for Thunderbolt interface. The whole USB/FW external audio interface industry really hasn't progressed much since I bought my 1804, and other than this lame compatibility issue, I see no reason to upgrade.
Hopefully somebody can help! Cheers!