Okay, we have two different digital photo frames and while both of them say they will auto rotate images, they both seem to have a hard time with portrait layout photos (displaying as landscape). One of our frames allows you to rotate the images manually and saves the change to the memory card, the other doesn't seem to save.

Any recommendations? When I look at them on my PC they are all properly rotated. It feels like there must be another application that I could open them in to rotate appropriately before saving to the SD card for the frame.