Problems Changing Domain

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I am moving the forum on one of our sites to a new domain, but it keeps redirecting to the old domain.

New domain: http://www.gojapango.com/japanforum/
Old domain: japaneselifestyle.com.au/japanforum/

I think I have changed everything that needs to be changed:
Two fields in the "server settings"; "domain name" and "Cookie Settings".

I changed all the instances of japaneselifestyle.com.au in the .htaccess file in the root directory.

I changed all the instances of japaneselifestyle.com.au in the gym_config table.

I have tried it on several different computers and cleared the cookies on at least one of these.

I did a search in this forum, but I couldn't find anyone else with a similar problem.