Emacs cursor woes

[jrwats]

Using GNU Emacs 23.1.50.1 (i386-mingw-nt6.1.7600) of 2009-11-03 on
LENNART-69DE564 (patched)

So I was typing happily in emacs and must have hit some obscure key-
combination that caused my cursor to to go from a nice blinking blue
box to a white line (on the left edge of where the box used to be)

ASCII art representation:

from:
===
|    |
|    |
===

to:
|
|

I read up on cursor settings and toyed and toiled, but could find no
way to get my pretty blue box cursor back.  Anyone know a solution?
I have the following in my .emacs:

(custom-set-faces
    '(cursor ((t (:background "#6666ed" :foreground "white")))))

(custom-set-variables
    '(cursor-type (quote box) t)
    '(x-stretch-cursor t))