When I type the word "send" into a document, it either changes to a link (I think) i.e. underlined and blue font colour, or crashes completely.
Are you sure that you use 3.4 RC2? Please, comment Bug 36615.
*** This bug has been marked as a duplicate of bug 36615 ***
RC2 is bit by bit identical with release version, so separate items in the version picker are useless. Changes have been discussed with Michael Meeks.