I've just created a fresh install of Wordpress MU and am going for the subdomain option (I've accordingly set-up a wildcard A record for my domain). I'm hosted on the Rackspace Cloud (formerly Mosso) in case that helps.
The install went smoothly and I can create regular blog posts on the default blog that's installed. I can even take the steps to create new blogs (define their subdomain etc.). But then when I go visit the subdomain, I get a page that is blank apart from the words "Please come back later." and "Coming Soon page" in the browser title bar.
Any thoughts on why this might be? Is this a host-side problem?
Thanks,
Alex