Finished Interlude. Computer is now installing a security update that I believe it installed just five days ago - also a Quick Time update that I think it also installed. Naturally, it requires a restart, which will the require me to actually restart the computer three times before I finally get the change all keychain thing to click on - until I click on that, I can't get the Internet to work. It naturally does this in the evening when everyone at Apple is gone, so if there's a problem you're completely out of luck until the next morning.
Hopefully, there won't be a problem.
Why would you have to restart your computer three times? -Although, it is a good idea to shut down and restart your computer from time to time to help clear out all the accumulated "stuff".
You can just download all the updates at once and do one reboot.
Additionally, the key chain prompt should not come up every time unless you checked a box in the security options when you set up your computer.
*And you can also set your computer to check for and install the updates during the day. When Apple is open. Or just check for them manually - which is what I do.