So I've got a Wacom Graphire4 tablet hooked up to my iBook G4 and I've never had a problem with it until today. I plugged it in like normal, but instead of the pen registering(for clicking, dragging and drawing) when it touches the tablet, it would do so a few mm above the tablet, making it impossible to draw and difficult to do anything else. This seems like a sensitivity problem, but I've tried all the troubleshooting things I have found that came with the tablet, as well as stuff looked up online, and have tried switching things around under System Preferences, from tip feel from "hard" to "soft" and back again. I have never had this problem before, and I only got the tablet this past Christmas so it's not old. Help please?