addon domain not resolving with new dedicated IP

[TroyL]

I have an add on domain that is not resolving since upgrading to a dedicated IP address. The add on's domain name is actually registered at another IP address and the A record is set to point to my account and was updated accordingly. I added SSL for one of my add on domains and all my other add ons are working with the exception of this one. I get the apache installation success page. This has been going on for about two weeks so it isn't a matter of the new info propagating. Is there something that I am missing or any suggestions to solve this dilema?