Tabs Question

[gamename]

Hi,

I'm creating a bare-bone .emacs file for a friend and I've run into a
curious "tab" problem.   In my older main .emacs file, if I hit the
"tab" key anywhere on the line when coding, the whole line will be
indented and untabified.  This behavior is displayed in both C and TCL
files.

The new .emacs file I'm building doesn't replicate this behavior.  I've
copied over every tab-related setting and still no luck.   Here's what
I have so far:

(setq-default tab-width 4)
(auto-fill-mode 1)
(setq-default backward-delete-char-untabify-method (quote all))
(setq-default indent-tabs-mode nil)

What am I missing?

TIA,
-T