[chrishajer]

Can you post the URLs for the old site, new site and forum?

Is it possible you hard coded the old domain in a template or link somewhere? Maybe the link in the WordPress menu is still to the old site? Did you search through your WordPress template directories for the old domain? If it’s hard coded in a template file, it would not be in the database.

Or maybe, you were not consistent with www vs. non-www for the URL? I have seem WordPress redirect example.com to http://www.example.com in some cases (never sat down to figure out when or why that happens.)