ISight via a firewire port on an OXFORD IDE external drive

My Powerbook G4 has an OXFORD IDE external hard drive connected to its one firewire port. Having connected my iSight camera into a spare firewire port on the ext HD neither iChat not iMovie recognise it. If I plug my VideoCam into the ext HD both iChat and iMovie are able to use it. How do I tell iChat and iMovie where to find iSight?

Hello Peter,
A "not uncommon" problem. iSight draws significant power and can be picky about what and how it shares your Mac's Firewire port(s).
See the Possible hardware or software conflicts with iSight. FAQ for my best suggestions.
Jim

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