Your comments

I think I found my cause of the issue - it was the size of the videos that I was trying to import to the iPad. When I reformatted the videos to a smaller screen size I was able to import them with no problem - d'uh! I guess I'll have to be more diligent now when selecting format, size etc...

Thanks again for your prompt replies!
Alas, after having the ability to transfer videos, it is gone again. I don't know why it is not working again.
Thanks so much. Changing the switch for "Use old savings APIs" to ON worked. I am now looking forward to giving my first presentation on iPad!
I have version 2.3 and when I try to transfer videos via WiFi from my Macbook any file such as .mov, .m4v or .mp4 I get an error message on my iPad stating that the video format is not valid. Why can I not transfer them to the iPad?