This problem persists. It has been reported by another user here:
forum/viewtopic.php?t=18558
I tried the last version of AdBlock and IE9 under Windows 7 and IE11 (latest version) under windows 8.1. I am unable to disable AdBlock for the current website. Disabling AdBlock for all websites works well, but for a single website doesn't. After I enable the option everything continues being blocked. Restarting the browser doesn't help either.