Hi ivegte ! just a quick answer I hope that's it ! As I said in the description of the plugin:
You may need to fix a ?bug? in wp-includes/capabilities.php, inserting the following line at the begining:
See this thread about it: http://wordpress.org/support/topic/fatal-error-call-to-undefined-function-wp_get_current_user-4?replies=32
Can you tell me if that solves it?
In any case, I'm happy you could fix it by erasing the plugin files !
I'd like to make sure whether tha bug I tell you is the issue, but I won't ask you to reinstall it to test it. But if you did and could see the error message, it would be a great help.
It's already 3 people with the same situation, I might have to bring down the plugin or paint a huge WARNING: UNSTABLE sign on it !!!