Hi Ron
Thanks for replying!
No, primary domain check is not disabled. Primary domain is rotarymerimbula.org.au.
Have put screen shots here - http://webhive.com.au/troubleshooting/
I have this problem across all my blogs. I usually solve it with the 'Home' setting but that causes other problems. (It breaks the login and Jetpack settings links.)
It didn't happen with the first couple of blogs I created. I've tried disabling all plugins on the blogs, to no avail. (I haven't tried disabling all plugins on the main blog though.)
Thanks!
Jackie