I am trying to complete the quest Lethal Remedy where you need to run around with your potion on the F key and hit the Kuo-Toa. The yellow ‘F” key circle displays with the green hand in the circle shown throwing a potion. However, when pressing the “F” key, the potion doesn't release, and nothing happens at all… I’ve tried (numerous times); restarting the game, leaving the map and returning, abandoning the quest and then restarting the quest, changing the “F” button key binding, quickly or continually pressing the “F” button. Nothing works and the potion just will not release!!!