Wireless Keyboard won't work.
THe wireless keyboard to my iMac will not turn on. I changed the batteries, held the button for three seconds (many times), but no go. To test to see if it was on I would hit the caps lock button, and it won't light. I went to the online Apple store to buy another, but in "requirements" it indicated that I need a keyboard to set up the new one.
HELP, please
iMac, Mac OS X (10.7.4)