I recently switched to the mac. Just bought a white iMac about two months ago. I was using Tiger at the time and tried for a long time to get my scanner working. I thought the mac was just supposed to be plug and play. I had to find an old mac driver and got it working but not great. It has to use the very old Canon tools driver. Now with Leopard that has quit working. Does anyone know of a TWAIN driver for this model? Isn't the Mac supposed to find this stuff on its own or get it through the Software Updates?