Parent - child zone confusion (mine!!).

[as@NOSPAMfreenet.co.uk]

Problem solved! Used this as a better zone file.

$TTL 7200
@  IN SOA ns1.activitae.com.      hostmaster.activitae.com. (
     2003080510    ; Serial number
     7200          ; Refresh
     3600          ; Retry
     777600        ; Expire
     3600          ; Minimum TTL
    )

  NS ns1.activitae.com.
  A 80.177.4.228
  MX 10 mail
  NS ns1.quadaenterprises.com.
ftp  A 80.177.4.228
mail  A 80.177.4.228
ns1.activitae.com  A 80.177.4.228
www  A 80.177.4.228
ns1.quadaenterprises.com   A  66.112.55.16