Okay, I am having issues with my iMac and I think I need to call applecare. My usb ports (all of them) are not recognizing my usb hubs. One hub is powered by the usb port, while the other has an ac adapter. Both hubs worked perfectly fine (no problems at all, used both for over a year) on my eMac. They dont require drivers or any special software. The problem started with certain keys not working on my keyboard (volume keys and eject button) and to solve the problem I switched to the a/c powered hub. Well that hub wont work at all. Nothing is seen by the computer. No keyboard, no mouse, no usb keys (tried different ones) and no printer. Does this sound like a problem with my iMac's usb? That is what I am personally leaning towards, so I would like some ideas of how to articulate this to applecare and what not to accept as answers/solutions. This is my first time calling applecare after owning a Mac for four years, and this computer is less than a day old, so I want it working perfect. Thanks in advance for any help and advice you kindly offer.