Just a small note I learned and have to keep remembering when I updating and especially upgrade third party applications, which is after you install a new application or update or upgrade an existing application, always check the system preferences.
Many applications now under Mountain Lion, OS-X 10.8.x (.2 in my case) add or change the system preferences for their application and if you don't check those preferences you'll find it doing things you don't want, namely check the user account login window to see if it installed itself to open when you log in or boot/reboot.
Also check the notifications seetings. Many applications add themselves to the notification list in the notification center and you have to move them to the "not in notification center" list. Otherwise you get notices you go, "Huh?" and then remember to check the notifications settings.
This is key if you're like me and don't want the stupid little notice. Some applications do this with even the smallest update. Anyway, just a small note, and no it's not in the notification center setting at all. I 'll leave that to you.