ah --- thank you both -- this now makes sense.
The cam has no bootflag enabled, I assume, because when servicing the cam Canon upgraded the firmware. The card presumably remains bootable -- because it is the same card that was booting before, when the camera had 2.03.
So, indeed, to reenable ML I have to both "update" to 2.03, and then reinstall ML from a card, so the bootflag will be set on the camera.
I feel much more comfortable doing stuff when I know why I'm doing it. Thanks.
The cam has no bootflag enabled, I assume, because when servicing the cam Canon upgraded the firmware. The card presumably remains bootable -- because it is the same card that was booting before, when the camera had 2.03.
So, indeed, to reenable ML I have to both "update" to 2.03, and then reinstall ML from a card, so the bootflag will be set on the camera.
I feel much more comfortable doing stuff when I know why I'm doing it. Thanks.