I just tried to add some videos I'd bought from iTunes back in 06 to my new iPhone from my newly authorized computer after adding them to iTunes, after having just set up my Apple ID on it and it's telling me that I can't put them on my iPhone because they are not authorized on my computer that I just got done authorizing, and it's driving me batty! I was able to put other iTunes store purchases on my phone, but not these videos for some unfathomable reason. Does anyone know what is going on here? How can I get around this snag? Why does it happen?