1. The power on/off is also controlled with the OS. Once you move to the new machine I'd use the restore CDs and take the offer for a total do over.
2. If that fails, try ikenfixit.com or notefix.com You can't get a firm price on these failures since some are simple 100 buck solder joint touchups and whatever dollars for shipping and sometimes it's a new motherboard for less than a thousand.
Sadly such failures are rarely fixed due to the ecomony of how cheap it is to use the USB device...
I have a HP ze4547wm that I have been using a wireless G card for about a year.
Last week the power and activity lights both quit coming on and the network could not be found. I tried another used card and a new card and neither of them got power so it appears that it is the slot itself.
Any idea if this is worth taking in to get fixed?
I'm using a USB wireless adaptor now and I want to buy another laptop, but I would like to get this fixed so I can resell.