Odd Behavior after changing nameservers for domain

I’m NO expert, but I’ve been changing nameservers, DNS, MX Records, A records, CName records and the like for a few years now for myself and other domains and this has me baffled.

I created a WP/Catalyst website locally on my machine using WAMP. The website/domain has been online/live with a different host for a number of years successfully. I transferred domain registrar over to my account with GoDaddy so I could more easily manage it. I changed nameservers to my nameservers Sunday night around 11p EST (5/20/2012). I then migrated the site to my reeseller account using BackupBuddy and confirmed it worked.

Typically, in my experience, it has taken as little as 2 or 3 hours and sometimes 10 to 12 hours before propagation appears to have finished when I’ve done this in the past. However, in this instance, both email and new site vs. old site working and appearing continues to change or go back and forth.

Basically, one hour or minute, the site shows up as the old site and the next hour it shows up as the new site. WHOIS shows the nameservers as the new ones. Most of the day today (>30hrs after nameserver change) the website has shown as the new one. But, all of a sudden a moment ago, only the old site is showing and I can no longer access cPanel or Webmail. I checked all the DNS Lookups, etc. This is with Firefox, Chrome, and IE … all while clearing cache, etc. And, remotely logging in to another computer and trying the same thing.

Also, POP’g email is not working … not authenticating the credentials. Webmail was working however, directly from cPanel (squirrelmail). Now, all of a sudden, that no longer works either. I checked several things using MXToolbox.com and it seemed fine.

Any thoughts??

Just thought I’d ask given most folks on here, like me, do this kind of thing pretty regularly.

Domain: coffeenewslouisville.com
New IP: 174.121.219.117
NameServers: ns1.cftechonline.com & ns2.cftechonline.com

Thanks!