Problem with key binding

[Mark A. Nicolosi]

Hi,

I found a function on the Emacs wiki that auto-completes a symbol (using 
dabbrev) if the point is middle or end of a line otherwise it indents 
that line.

The function works fine when I run it manually, however I can't get it 
work when binding it to <TAB>. Here's what I'm using:

(defun my-c-mode-hook ()
  ;; <SNIP>
  (local-set-key (kbd "\t") 'indent-or-complete)
  ;; <SNIP>
  )
(add-hook 'c-mode-hook 'my-c-mode-hook)

I know the my-c-mode-hook function is running, because other stuff in 
there is working. This part is really strange: If run local-set-key 
press tab and then enter ident-or-complete it works. What the heck?

TIA

--
Mark A. Nicolosi