A great deal of the photos that I try to upload off my D300 haven't been made it to my iPhoto because of stuff like this (it has happened twice):
Advice?
Advice?
In other words if it works for D80 RAW images and not for hte D300, Nikon changed something!
The D300 NEF format was not handled until recently. Do you have the latest version of Leopard? It always seem to take Apple 6 months after a new camera comes out to be able to process that camera's raw format. The raw conversion is a feature of the OS not iPhoto. Support for new cameras always comes with they release an update to the OS.
What's odd is that you say that sometimes it word and sometimes not.