My friend has a powerbook with the airport builtin wireless. I bought a dlink di524 for her to use, but the signal is just terrible. I can get access to it parked in my car sitting outside her house. But if she leaves the room and the room immediately next to it, she loses all signal. Being about 20ft from the dlink, she has barely any signal with her powerbook and I'm still full. So of course down in the basement or on the other side of the house, she gets nothing, whereas I still get a very good signal. I've never used a mac before really so does anyone have any knowledge about this? I think I ruled out the dlink fairly well..