Since I update my OS to 6.0 on both my iPhone 4S and IPad 2, I can't log into Yahoo Email (using Yahoo's site). I can log into Yahoo, but when i go into the email it opens starts downloading the message and then changes to " your session has expired - please log in". It has my user name and I enter the PW and it starts again like it's going to open as normal then goes back to your session has expired. I can go back to the main Yahoo or My Yahoo page and I'm still logged in, but if I click on mail it does the same thing again. When I try this on my Windows PC and Laptops, no issues. I even changed my PW from the yahoo page and it still does it. I did go into ":Settings" "Safari" and Cleared the History, Cookies and the "Advanced" and cleared out the "Website Data" and it will let me log in, but if I log out or close Safari and try to log back in or just go back to Yahoo Email it does the same thing again. I can also set up the Yahoo Email under the regular Mail and it works great there. but I can't go to yahoo and look at my email. Any Ideas or tricks?