unlocked fields beep on text entry

[Dr. Hawkins]

I have a couple of fields with, according to the inspector, visible, focus
with keyboard, focuskorder, and autohlite set, and nothing else.

I can click into them, but I can't enter text--it simply beeps.  It has no
behavior.

I trapped keyup, and single stepped, and it doesn't go anywhere.

What else could cause this?

-- 
Dr. Richard E. Hawkins, Esq.
(702) 508-8462