Hi, I just purchased a canon sd450 digital camera. I tried taking pictures and plugging my usb cords in to upload pictures onto my ibook and NOTHING HAPPENS. I came across the TIGER OSX compatibilities page on the Apple site, but it does not list Canon Sd450 as one of the cameras. Anyone familiar with the new SD models and their issues with TIGER OSX? Please let me know since I'm having issues! Thanks so much