YAHOO SIGN IN HAS CHANGE!!! IT NOW REQUIRE A CELL PHONE??? I USED TO USE DIFFERENT AREAS OF YAHOO BUT YOU'VE SYSTEMATICALLY RUINED ALMOST EVERY PART OF YAHOO. I used to use YAHOO Finance, RUINED, I used to use GROUPS, RUINED! NOW you've change the log-in process and you need to keep a cell phone glued to your ***. THAT MAY BE THE FINAL STRAW that makes me totally ELIMINATE ALL YAHOO FROM MY COMPUTERS!!!!!!