Is the DNS server returning the right IP address?
If the right IP address is being shown in your account, the next thing to check is if the DNS server is returning the right IP address when being asked for that information. The easiest way to test this is to use the NSLOOKUP command from a terminal window. Open a command line window (terminal on Linux machines, DOS box on Windows computers), and type the following: nslookup (yourhost.yourdomain.com).