Pictures' EXIF orientation not recognized

When I take pictures on my camera (Nikon D50) in another orientation, the camera uses the EXIF orientation tag instead of rotating the actual image. Most software I use to interact with photos (F-Spot, Eye of Gnome, Nautilus) reads the EXIF orientation information and displays the image in the correct orientation without modifying the actual file. This would be a good feature to incorporate into Gloobus Preview.

I am running version 0.4.5-ubuntu4~ppa233 on Ubuntu Lucid from the Nautilus Elementary PPA.