I've been using this plugin for a while now and had not problems.
Yesterday I updated a few plugins and WP. After doing so when ever I tried to login directly to dashboard I would get a white screen that would hang indefinitely. Same thing if I view an individual post from the admin panel - freezes on a white screen.
After disabling this plugin everything went back to normal.
I was wondering if there are any known issues such as conflicts with other plugins, etc that might causing this. Because I updated a few plugins and WP at the same time I'm not sure which of these if any could be causing a problem.
Thanks.
http://wordpress.org/extend/plugins/wp-facebook-open-graph-protocol/