Disappearing DNS servers

[Christopher Cobb]

I have added some additional DNS servers to augment the default "DNS service"
provided via DHCP by my router at 192.168.0.1.  I put these in place using
Computer->System Adminitration->Networking dialog, on the DNS tab.

However, these keep disappearing.  What I mean is that they disappear from
/etc/resolv.conf.  If I go back to the Computer->System
Adminitration->Networking dialog, they are still there.  But they are gone from
/etc/resolv.conf, and therefore are not used.

I guess the fundamental problem is that my router's "DNS Service" is flakey and
ends up not working half the time (I have a Netgear mr314 wireless base
station/switch -- can anyone comment on this behavior?).  The "easy" way around
that problem was just to add some other DNS servers.  However, these keep on
vanishing, too!

Who can help me find my way out of this dilema?

Chris