ntpq -p shows no servers working

Does any one know why ntpq -p would have the following output:

     remote           refid      st t when poll reach   delay   offset
jitter
============================================================================
==
 time.nist.gov   .ACTS.           1 u   35   64  377   56.603  -355.35
4102.83
 clock.isc.org   gps.laguna.vix.  2 u   41   64  377   73.566  -6279.9
5443.67
 catapult.sgi.co 0.0.0.0          0 u    -  128    0    0.000    0.000
4000.00

Since there is not a "*" at the beginning of a line, the documentation says
that there is no server being used. How do I fix this?

David