hostname server issue

At the urging of my new hosting company, goDaddy, I used the same domain (dciwebworks.com) as the custom nameserver for BOTH my old server and new server, both using cPanel.

I've created my custom DNs as NS3.DCIWEBWORKS.COM, NS4.DCIWEBWORKS.COM (NS1 and NS2 are still pointed to the old server).

I created a new host name on the new VPS of server2.dciwebworks.com. I've left the DNS definition on dciwebworks.com at the old server.

I've gotten this error several times:

The server was unable to lookup an an A entry for its hostname (server2.dciwebworks.com). This is generally because the entry was never added. However this could also be the result of your nameserver(s) being down. If you would like to attempt to automaticlly add the entry,

I've added entries for both ns3 and ns4 but wonder if there is a place I can go to to see if in fact they are properly set up? The display only shows the NS3 nameserver. I've forced an add of the NS4 and defined the ip's, but the error has come back several times...

The goDaddy team now says I need to change the DNS registry on dciwebworks.com to the new server, but my question is, "What will that mean to reliability on the old server, since customers will still be on IT for another week or more?"

Any ideas on this issue, or is it not a problem, or should I go ahead and create a new custom nameserver with another domain name and use it on the new server?