Updated 2018.08.05: Added xterm-256color info FreeBSD, by default, keeps file output on screen after a file has been closed, which is the opposite of how xterm operates in Linux, and if one prefers the Linux style of xterm, which clears file output from the screen once the file has been closed...

I haven't changed any settings and now every time I log into my server ( with root) I get "this is a dumb terminal" so I can't VI files. It was working correctly this weekend and a few days ago it just stopped. I'm using the newest version of Putty and I've rebooted the machine (I've actually...