Twice recently significant errors have occured with sensitive business emails that I drafted, over the course of hours, that upon pressing "Send" resulted in them being erased from my mails and the recipients not receiving them. As such, I was required to rewrite the complicated correspondences from the beginning. WHAT A COMPLETE "**** UP" ON THE PART OF YAHOO. AM CONSIDERING TRANSFERRING ALL MATERIAL TO GMAIL OR A MORE USER FRIENDLY SYSTEM WITH ALL OF THE RECENT GLITCHS LATELY. FIX IT!