So my powerbook (specs in sig) has been struggling to connect to the internet wirelessly. At my home and at school the computer is about 20-25ish feet from the wireless hub and its worked fine since I've had it. But now it won't connect to the wireless network and if it does it will have maybe one bar and it will work for a minute or two and then disconnect. So, because it is way more convent to be connected wirelessly at home, I was wondering if anyone had a solution to this problem? I didn't know if maybe my airport extreme card was dying or something like that. I was planning on ordering a new airport card and seeing if that was the problem, but then I thought maybe just a usb wireless card or something would work better. ANY thoughts or suggestions would be great. Thanks!