There appears to be a problem with the rewrite of the links for "pagination" in the Admin area. Enable the plugin, check "Force SSL for Admin" and then go to, for example, the Comment section.
The page presented has links for advancing to the next page of comments. (Or previous or navigating directly to a section of the comments). These are the arrow buttons on the right side of the the page.
If you hover over these buttons and look at the link in the browser's status bar, the address link is presented with an IP in place of the shared SSL site name like "secure.domain.com".
Clicking on the link then causes an SSL error because the IP in the link doesn't match the hostname in the SSL certificate. I'm then logged out of the admin area.
If I disable the plugin and go to the same spot and hover over the link, the site name is displayed rather than an IP address, thus why I think it's something in the plugin.
If you need more info or this isn't clear, let me know.