Same as the accent grave on an 'a', so we have to type
a` lest it turn out an ê. î ï * ì. Dunno how long these will turn out int he message. Is it something to do with what kind of language/script support we have or..?
But yeah, if the grave accent is needed we've just made do with a 'a' and a '`'.
i`??
.
EDIT: Mmm.
'i? appears the acute has the problem.