New imac doesn't recognize firewire 400

Just got the new imac and transferred all data from my old (non-intel) imac using a firewire 400-to-800 adapter.
Now, my new imac doesn't recognize my external (400 firewire) drives anymore. One of the drives has an USB which works with the new mac but transfers are very vey slow. The other drive has only firewire 400 and doesn't get recognized at all.
Any solutions?
Thanks.

Adapters can be troublesome, I'd recommend replacing with a Firewire 400 to 800 cable like this one. You can normally find these at your local computer store, Radio Shack or of course Amazon.
Roger

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Message was edited by: nerowolfe

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