Login is so slow much of the time, it's making mail.yahoo almost useless. Even after eventual login, the tools just above the list of emails stay grayed out and nonfunctional, sometimes for more than 30 minutes. Refreshing the screen doesn't help. Also the ad at the top just above the top email often gets redrawn in the wrong place, partially covering the listing of the top email. I have an image I could send upon request that shows both problems. I see this glitch in both Chrome and Firefox.