I love and use tux all the time, but for me it doesn't always just work. I regularly run into weird backspace/delete behavior when using tmux with ssh. For example, ssh from ubuntu into rhel and then running tmux will give me a completely different behavior compared to when I tmux in ubuntu and then ssh into rhel. I know that backspace/delete behavior has more to do with the terminal than tmux, but gnome terminal seems to handle it fine outside of tmux.
I've run into this a few times, too -- seems to have something to do with the termcap info for tmux's virtual term. FWIW, I was able to work around it with 'stty', e.g.:
$ stty erase ^?
to recognize DEL (ASCII 127, or ^?) as backspace. I have that in my .bashrc on a particular machine that gives me this problem...
