Video won't play in published file

graced

I'm working with a file created by someone else who's no longer available. I'm under a deadline crunch and have noticed that videos don't appear when the course has been published.



If I preview - the videos come up and play but they somehow get lost when I publish.



Any suggestion on what could be the problem?



I'm not working on the original development computer. All the files have been transferred from the original development environment - to a server - and downloaded by ftp to my computer.



Thanks for any help you can provide.



Grace