Hi, I'm running Snow Leopard 10.6.8 on my mac and today when I came back to my computer I saw the following notification window. Is this legit? Is anyone else on SL seeing this message? I didn't open the App store. I had safari and mail open but no windows open. The notifcation is still there after quitting all apps. I'm assuming it is legit but wanted to check. The notification window is at the front / shows in front of other windows. Thanks.