I have been using my ibook g4 to connect my xbox 360 to the internet. I have an ethernet cord connecting the two together. just recently, after doing this for months, my ibook will randomly disconnect from the internet. the computer's wifi signals say it's connected but nothing works including ichat, and safari. the internet on xbox also stops. i try resetting my computer and unplugging the ethernet, and the only thing that works is resetting our router. while my computer doesn't work everyone else in the house manages fine with the internet so i am lead to believe it is my computer