This is a strange little tweak; ctrl-` toggles the formula result or formula 
just fine on Linux (and presumably Mac, although I do not have one to test), 
but it does not work on Win32.

Someone in the OO forums was kind enough to provide a macro I could use to 
toggle it, but that doesn't solve the issue, as I can't assign it to ctrl-` 
(the key sequence does not appear in the list of assignable keys).  The fact 
that this works by default on Linux suggests to me that it was an oversight of 
some kind for win32.