crosseyed: Sorry I don't have any suggestions since "everything" has already been done on the users side.

With a site change, when the IP address moves with the site there should be even less issues - but something issues with Cache pointing to the "old" place can cause issues with a site only 1/2 working... but with that already done, I guess that will not work.

Also using different browsers to see if the issue is with the browser and not the site or computer would be another suggestion - but since that was already done, I guess that was not it.

Also having the user log in from a different computer (if possible) to see if the issue is with the account or computer is another suggestion - but since that was already done, I guess that was not it.

And of course the suggestion already made to try to log in to a BrainKing domain they normally do not use (which will hopefully be "new" to the DNS and retrieve all the new & correct information to the computer.)

... it's hard to try to help once everything has already been tried.