I have still one or two problems. The Dashboard seems to be OK, but if I login and go to the front page I get sometimes (seems to be only IE9) an error for the certificate. I don't see the admin bar.
For example Firefox never shows an error message. If I use the older version (2.0.4) also IE9 doesn't show an error. I use a Multi-DNS certificate for four valid (sub) domains. Not all subdomains with wordpress rendered in IE9 shows the error. I don't know why it occur only on one or two of them.
Additional on the same subdomain, the rss feed isn't available if I enable the newest version 3.0.3 => getting "200: Operation timed out after 1 seconds with 0 bytes received".
Therefore I disabled the plugin and I got the feed back. The error message for certificate was still available. Using 2.0.4 fixed both problems.
Subdomain with problem: http://galerie.blackseals.net - at the moment I use the good old 2.0.4.