Well, it looks like I have taken a step backwards.
I fired up mysql and navigated to the host table of mysql.
I then entered:
update user set Host='mx2.myisp.com' where user='root';
update db set Host='mx2.myisp.com' where Db='mysql';
I then restarted the service.
Now two things are happening:
First, when I try to access the DB from MX1 I get:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
Second, when in the expert installation of MX2, when trying to connect to MX1 it aborts stating tables have been created.
Is there a way flush the privlages in mysql to allow root to login once again, also do I want to specify a seperate DB when adding the second server to the setup?