CNAME

[Dat Nguyen]

Please tell me if anything wrong with the www CNAME below.
web.mydomain.com is being served by ns3.mydomain.com.
www.web.mydomain.com is a dynamic record under web.mydomain.com
(lbnamed).
I have no problem finding www.mydomain.com using nslookup.  However,
when I use the browser to get to www.mydomain.com, I get the "Host not Found"
error message.
No problem getting www.web.mydomain.com.
Could this be a proxy problem rather than a DNS problem?

Thanks,

@               IN      SOA     ns1.mydomain.com. root.ns1.mydomain.com.
(
                 19981028414     ; SOA serial number
                 600             ; SOA refresh rate
                 300             ; SOA retry
                 3600            ; SOA expire
                 3600            ; SOA minimum
)
                 IN      NS      ns1.mydomain.com.
                 IN      A       x.x.x.x
                 IN      NS      ns2.mydomain.com.
                 IN      A       x.x.x.x

(I deleted most of records to make it short)

web          IN      NS      ns3.mydomain.com.
                 IN      A       x.x.x.x

www           IN      CNAME   www.web.mydomain.com.