Using a Flex app on a Mac, I am unable to switch my input language. However, using the same Flex app on Windows XP, I am able to switch my input language (by pressing ~ which is typical for any program).
I am testing this on a Flex app I wrote, and also the Flex app at this link: http://www.scalenine.com/themes/messenger/messenger.html Is there a work around that would allow me to enter text in other language on a Mac?

