Hi jaymdouglas
Indeed that is exactly the approach I normally use. Start
with a smaller sized image, then use the Zoom tool to present the
larger (actual) sized image. You would do this by saving the larger
image as a standard image file. Then when you insert the Zoom area,
you should see a button labeled "Select Image". Click this button
and choose the full sized image. Note that you would probably want
to configure the zoom destination area to be the identical
dimensions of the image you are using. Captivate won't offer any
help with that, other than to list the pixel sizes in properties
dialogs.
Cheers... Rick