Hi...

This is the second report of this I've seen in the past few days, so it may pay to take heed and ensure your devices are both plugged in before connecting the FireWire cable.

From <http://www.macintouch.com/>:
David Roy warns that attaching an externally-powered FireWire device to a Mac without its power supply connected properly may ruin the Mac's FireWire ports (an expensive problem):

I am writing this as a warning to other Macintosh users. I recently purchased, directly from Formac, their CDRW 32 x 10 x 40. The drive burned out the Firewire ports on my Dual 500 G4 Mac. The repair will cost about $500 for a new motherboard. Formac acknowledges that their drive caused the problem but says the problem is the the way Apple implemented its FireWire card. They assured me that Apple would repair my machine for free. No Apple phone rep has heard of this program and the local Apple repair shop is equally in the dark. Formac than repeatedly assured me that they would have Apple call me. That also never happened. I have listed our email exchanges below. They were supplemented by several phone conversations.

Have fun,
Shay
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=========================== Shay Telfer ================================
Perth, Western Australia Technomancer It must be bunnies!
Opinions for hire [POQ]
[EMAIL PROTECTED] fnord