Mac US Keyboard Dead Keys (typed before base character)
-------------------------

Option-n = tilde 
Option-` = grave 
Option-e = acute 
Option-u = diaeresis/umlaut
Option-i = circumflex
(Option-c = c-cedilla)

Note:  These should work with all apps.


Mac US Extended Keyboard Dead Keys (typed before base character)
------------------------------
Option-` = grave
Option-^ = circumflex above
Option-w = dot above
Option-e = acute
Option-u = diaeresis/umlaut
Option-i = horn
Option-p = comma below
Option-a = macron above
Option-h = macron below
Option-j = double acute
Option-k = ring above
Option-l = stroke overlay
Option-z = hook above
Option-x = dot below
Option-c = cedilla
Option-v = caron
Option-b = breve
Option-n = tilde above
Option-m = ogonek
Option-Shift-g = circumflex below
Option-Shift-f = tilde below
Option-Shift-s = inverted breve above
Option-Shift-y = double grave above

Note:  This keyboard can only be used with Unicode-savvy apps (not Appleworks or WordX).

Mac US Extended Keyboard Combining Diacritics (typed after base character)
-------------------------------------------------------------------------------

Option-Shift-` = grave
Option-Shift-^ = circumflex
Option-Shift-w = dot above
Option-Shift-e = acute
Option-Shift-u = diaeresis/umlaut
Option-Shift-i = horn
Option-Shift-p = comma below
Option-Shift-a = macron above
Option-Shift-h = macron below
Option-Shift-j = double acute
Option-Shift-k = ring above
Option-Shift-l = stroke overlay
Option-Shift-z = hook
Option-Shift-x = dot below
Option-Shift-c = cedilla
Option-Shift-v = caron
Option-Shift-b = breve
Option-Shift-n = tilde
Option-Shift-m = ogonek

Note:  This keyboard can only be used with Unicode-savvy apps (not Appleworks or WordX).


USIntl Keyboard Dead Keys (typed before base character)
-------------------------------------------------

` = grave
~ = tilde
^ = circumflex
' = acute and c-cedilla
" = diaeresis/umlaut

Note:  This is  the Windows style US International keyboard.  A
rudimentary version can be obtained here
and a more complete one here.  It should be
installed in the folder Library/Keyboard Layouts, either the main one
or the one in your User folder.  

For more info on keyboard issues,
see  this
page.