Pro Tools Error

[Dennis]

I have been transferring some audio cassettes to Pro Tools recently but my computer temportarily locks up and I get the following error:

DAE Can't get audio fast enough from the drive(s) fast enough. Your drive may be too slow or fragmented, or a firewire drive could be having trouble due to the extra firewire bandwidth or CPU load. (-9073).

Here are the specifics. I have a 2.0 Dual Core G5 into which I recently installed a Western Digital Serial ATA Hard Drive (WDC WD4000K0-00NAB0) dedicated to audio. I moved all of my audio files (mp3's, wave's and the entire Pro Tools Sessions Folder into it).

Any suggestions? Should my Pro Tools folder (the actual application) be on the system hard drive or the new audio drive? It is currently on the system drive. Is it having a problem retrieving the audio from the new drive? Please help.

Thanks