Audio cutting out when using D2 external Firewire Drive

Hi,
I have just upgraded to Logic Studio, using the following setup:
Macbook Pro
Motu 828
AMT 8
Logic Studio
D2 Lacie 500GB Firewire Drive
As the MacBook's internal hard drive is not sufficient to record and playpack efficiently, I was advised to get an external Firewire Drive. Given that I have very little space on my laptop - (am running windows on a partition also) I am trying to save my logic files to the external HD. When creating tracks specifically using Audio Instruments, the playpack keeps cutting out.
I am connecting the HD via usb 2. I am also having to freeze the tracks in order to record more layers. There is lots of clipping and latency. I thought by using the external, this problem would be resolved.
The HD is not playing back the tracks fast enough, and keeps cutting the audio out. The audio cuts out everytime the blue light on the drive flashes.
I cannot save the files to the MackBook HD as there is notenough space.
Is there something very wrong with my setup?
any advice would be really appreciated.
ps. I am a bit of a newbie
thank you in advance.
Spy

Connect it via firewire 800. USB2 is not good for audio or video streaming.
I have 3 D2's connected to my mac pro, works like a charm.
good luck.

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Message was edited by: modular747

Audio cutting out when using D2 external Firewire Drive

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