I found the problem some have been having with top, htop, mc, etc. The LXTerminal is acting up. I've tried tilda, xterm, guake, and XFCE's terminal. They all work normally and will launch the three examples given. lxterminal won't. It will launch locate, find, set, etc. When I run htop, I get Error opening terminal: unknown. When I run top or mc, I get TERM environment variable not.set
So, lxterminal is upset about not being the default terminal? I dunno. I can't figure out where the problem is. I looked all through ~/.config/lx-- folders and /usr/share/lxterminal/lxterminal.conf file and found nothing. But the problem is definitely with lxterminal.