Remember young Wizards, not all quests allow you to use the Quest Arrow. Some quests you must figure out on your own with the use of your Map. You must also have a quest selected in your Quest Journal for your arrow to appear.
To access your Map, press M on your keyboard when you're not chatting and not in a duel. To turn your quest arrow on and off, press T on your keyboard when you're not chatting and not in a duel.
You must also have a quest selected in your Quest Journal for your arrow to appear.
but see that was the problem it wouldn't let me select anymore quests from the journal after the arrow disappeared as i was following it. like i said i merely had to turn the quest helper on again it was just odd that it shut off out of the blue like that.