I've been using Little Snitch 2.5.3 on my late 2009 iMac (OS 10.7.5), and not to long ago the column of check boxes which let me toggle individual rules has disappeared. I can still disable and enable the all the rules via the utilizes preferences, but it's odd that I can no longer toggle each rule. I can always update/ check out version 3, but wondering if anyone has experienced the same issue.