My friend has a Wacom Intuos, model number GD-0405-A. He recently found it in his closet, and he wants to use it on his iMac G4. However, when attempting to use the tablet, after installing what he thinks is the correct driver (it said so on the site), it wasn't working. The connection was an ADB so he used the adapter from iMate to connect it to his USB port. Any help? Suggestions? Thanks in advance.