Yay, I found it! I don't know why it didn't show up last time. Maybe because I was on the 3rd page of that process before I hit Quit. But this time, I hit Quit on the first page, and the Linux Mint desktop popped right up.
The first thing I did was try to set up an internet connection, but it doesn't seem to be working. Would that be disabled for using the live usb drive? I found the little connections icon in the system tray, and opened a Network Connections window. Clicked Add button, created a wifi connection using my SSID and password, and using the same security settings (WPA 2, I think). Saved it. But from there, I don't see how to connect. I tried double-clicking on the new item in the list of connections, tried right-click but no context menu. I don't see a Connect button anywhere. If it's not disabled for the usb drive, then I'll just call tech support for my ISP.
Should I install a security system before I go online? I've had the general impression that Linux systems are not targetted by the malware and malicious activity, but I guess I heard that about 15 years ago. So maybe it's changed? I'm not sure if I could actually go online without a security system. It seems like I would feel naked, you know? Haha I mean, at least I should have a firewall, right? I mean, you can be targetted directly, whether you have a browser open or not, right?
Hhm, maybe there's some internal security? Could Linux Mint have its own firewall? That'll be at the top of my list, next time I boot, to look for security options.
It turns out I have Linux Mint 17.2, 64-bit, Cinnamon. And Cinnamon is the environment, right? I'm not sure how I got it, but I'd like to try some others. But I couldn't find any way to change it from Cinnamon to something else, and because of the way it shows up in the system info, I'm guessing it gets installed with the os, and that there's no way to change it without installing the os again.
There are very few theme options available from what I can tell (essentially 3), although it looks like there is a way to download more themes. But is there any way to change the environment, without reinstalling the os?
Thanks for your help, Moini. Once I start making decisions about what to install, I'll switch over to a forum for whatever system I choose. But for the moment I'm kind of a ship without a harbor.
As usual, you posted while I was typing
