Good news!!
Got Keith from Apple on the phone to walk me thru the set-up
of the Apple extreme. Changed to channel 9 and ckeck for robust
interference. Network password is UNIT5353. Other password is
Kelly. Seems to be good now . Check back to see if it stays that 
way. The case # is 124696049.  Call back Apple after a few days
1-800-275-2273 to let them know that all is OK. 
