Miratum

M-audio 410 Firewire Problems!

I've just got my new PowerBook G4, 1.5 ghz, 1.25 gb ram! It's great, and then i got my m-audio 410 firewire interface. I downloaded the latest driver, installed it, did everything that i asked for.
Great, i turned on my computer with the interface connected, there was sound and i all seemed great, BUT: I cant record, my midi I/O doesn't work, no signal to the computer. When i open mac's audio and midi configuration, i often just crashes. Logic 7 express says: "Timeout ir Timer inactive. Check other applications using timer or midi(code 0)". When the program is open it says: " WARNING, mac Os X midi services not available".
I cant record, even though my cubase sx 1.0.51 shows that there are signals fro my input. No midi, cant record, and logic doesnt work at all... i know that a lot of people has got the same problem, but somehow, and i have REALLY searched EVERYWHERE, i didn't find any sollution! I hope that some of you have got the same setup as, and i hope i work for you, so you can tell me what to do!!