Before my ibook, I had a G3 Wall Street, and used the infrared port to allow me to access the internet while on the road using a mobile phone. I now have a G3 dual USB ibook 500 12" - with no infrared. I recently bought a USB IRDA plug in adapter, but when I plug it into the ibook, the computer does not appear to "see" it. The adapter did not come with any software, and is simply marked "NE120". I am running OSX. If anyone can help out I would be very grateful! Thanks Chris