How do I make sure my portrait oriented pictures are not shown sideways in landscape format?

Yep, I've got the same issue. I used MS Office to orient the portrait pictures correctly for streaming to the ATV. No luck - all the pictures are landscaped. Seems like this has been an issue for quite some time with no response/ solution from Apple or anyone else who's trying. Steve Jobs would not be happy with this customer experience.

This is a user forum. I would give feedback directly.

http://www.apple.com/feedback/