Hi, I've had this problem for a month or two now, but it's just now starting to get really irritating, especially since I use the arrow keys a lot. My up arrow key has lost it's rebound, so to speak. All three of the other arrow keys come right back up, but the up arrow key has much less of a travel time, almost making me believe that the key has something stuck underneath it or the mechanism underneath it is dislodged. I couldn't find anything on the forums regarding MBA 2013 arrow keys, and would like some advice on how to fix this. (Yes, I know -- there have been dozens of topics about key replacements, but I couldn't find one about specific notebook arrow keys. If there is such a topic, feel free to point me to it.) Should I bring my MBA to the Apple Store? Is there a simple fix? Or will I have to send the laptop away for a full keyboard replacement? If there's a home-spun way to fix this without major risk of damaging the key, please let me know. Thank you.