I've recently upgrated to GNU emacs 22.1.1. It seems that version 22
has changed the behavior of the key; more often than not
pressing tab will result in a series of spaces being added rather than
a real tab character. I know I can insert a real tab by way of C-q,
but I'd like for the key to also exhibit this behavior. I guess
there's a simple solution to my problem, but I can't find an obvious
answer. Help is appreciated.