I picked up one of the last model 20" C2D iMacs yesterday. I am having big problems connecting to the internet through the AirPort connection of the iMac with any reliability. I'm connecting to one of the new AirPort Extreme Base Stations, which works great with my CD MacBook Pro. I have all the latest updates loaded on both computers and the exact same settings for the network, internet and sharing on both computers. Sometimes the iMac will work normally, other times it is intermittent and will load web pages slowly and the rest of the time it won't connect to the internet at all. I don't think it's the AirPort Extreme, as the MBP connects to the internet just fine. The 2 computers can also share files between themselves with ease. Does anyone have any idea what I can do to try to fix it?