How do you embed backgrounds when inserting slides into new prese.

[Reebart]

When I am importing slides to a new presentation the original background does
not always copy across. Why? Is there a way to ensure that it does?

 

[Echo S]

When I am importing slides to a new presentation the original background does
not always copy across. Why? Is there a way to ensure that it does?

Depends which version of PPT you're using.
http://www.echosvoice.com/multipletemplates.htm might help.