> I won't spend too many brain cycles figuring out how this sequence in a DV project "magically"
> got set to HD, but it is peculiar.
You picked up a great lesson -- in troubleshooting, you have to check even the elements that you are 99 per cent sure are correct. Rule them out. If you had been too stubborn to check your Sequence Settings, you would never have figured out your problem. So, nice going.
Sequence Presets only dictate what settings a newly created Sequence would carry; pre-existing ones won't be affected. My bet would be that your current Sequence had been created before you used Easy Setup or otherwise determined the Sequence Preset.
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