Hi wouter
This issue is a bit on the thorny side. Seems that any
importing of PowerPoint will cause new slides to be created during
the process. In other words, there is no way to import and simply
overlay the slides that are there.
Because of this, I'm thinking the best approach may well be
to simply create a totally new Captivate during that import
process. Then, open the older Captivate and export all the audio
from that one so you may import into the new one.
Or another possible approach here would be to use the Library
function of the new project. Within the Library, use the button to
open a different Library and point at the other Captivate
containing the audio. Then drag the audio clips from the original
project into the new and assign as needed.
Hopefully something here was helpful in some way... Rick