Hello All, I'm not a Mac expert so have come here for advice on this one. I sold an old iMac G5, which belonged to my sister, recently. It was sold without the hard drive for security. It had been sitting in a box and was working fine before then. Just wasn't used since she'd bought an Apple laptop. Two and a half months after selling it the buyer says it won't connect to his home internet and saying it's therefore faulty and wants me to resolve it. He says it won't connect either on the airport card he's installed, on the USB wifi dongle I sent him or even the CAT5 connection. Now I am a PC user and have built various PCs for a long while and do have some hardware/software experience. As far as I am concerned this has to be down to a software issue with his new set up. I can't believe that all 3 (USB, airport and cat5) can all be faulty or that there is some other hardware within the Mac that could cause them all not to allow internet connection. Anyone have any experience of this? Thanks a lot.