Disabled menu entries & buttons

[Kenneth Albanowski <kjahds kjahds com>]

Is there a particular reason why buttons and menu items don't support a
disabled state, or is it just an omission? (That is, a "grayed out" state
that leaves the button/item visible, but clearly shows that it will not
work.) Or did I miss something?

Disabling isn't the grandest UI concept, but it seems preferable to hiding
the button/item entirely.

-- 
Kenneth Albanowski (kjahds@kjahds.com, CIS: 70705,126)