we are using wordpress with force_ssl_admin beeing enabled (see here: http://codex.wordpress.org/Administration_Over_SSL). Looks like this plugin has issues if this is enabled. If I upload an avatar image and choose it in my profile the browser will issue warnings that the page contains secure and unsecure content. Looks like this is caused by the avatar image beeing displayed in the upper right.
I'm not sure if this is caused by https://core.trac.wordpress.org/ticket/15928
Would be great if this could be fixed as this is a pretty awesome plugin ;-)
All the best