Hi all, I need help so i can figure out how to fix this problem: Months ago, when I connect the usb port of my canon lide200 scanner to my macbook the connection is immediate and i could scan items easily. Now, when the scanner is connected to my macbook, macbook does not sense scanner at all. There's nothing wrong with the usb ports on my macbook - tested both usb ports on the macbook. scanner works when I connect to a friend's PC. What could be the matter? I followed the exact steps and have not uploaded software into my macbook. I would like to learn how to solve this. All help is appreciated. Thanks.