site redirecting to google.com after dns nameserver change

We are not sure if this is a local or a global problem. We're being redirected to google.com. Back-end pages are giving google's broken robot 404 page. Everything seems fine when I look "out there":

> ; <<>> DiG 9.7.0-P1 <<>> www.landartgenerator.org

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43232

;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 0

;; QUESTION SECTION:

;www.landartgenerator.org. IN A

;; ANSWER SECTION:

www.landartgenerator.org. 86400 IN A 50.116.11.90

;; AUTHORITY SECTION:

landartgenerator.org. 86400 IN NS ns2.linode.com.

landartgenerator.org. 86400 IN NS ns3.linode.com.

landartgenerator.org. 86400 IN NS ns5.linode.com.

landartgenerator.org. 86400 IN NS ns1.linode.com.

landartgenerator.org. 86400 IN NS ns4.linode.com.

;; Query time: 48 msec

;; SERVER: 74.207.241.5#53(74.207.241.5)

;; WHEN: Fri Jun 15 06:41:17 2012

;; MSG SIZE rcvd: 158

We do have MX records for google mail handling. Could this be the problem? Is this something happening on the local machine (mac book) while it is confused about the switch? The DNS namechange is still propagating (we made the change approx. 12 hrs ago).

Thank you in advance for your help.