Now that I’m spending more time on my Macintosh PowerBook, partly by choice and partly for a new project, I’m beginning to see why some Mac users seem so “touchy” about certain topics. Before my trip to the Altiris user conference, I needed to upgrade my iMovie to the newest version for a video project I’m working on. Trying to buy the software through retail made me feel like Rodney Dangerfield: Mac users get no retail respect. More…