Widespread chaos with Yahoo mail this morning, sessions were timed out after three or four seconds and users told to confirm password. Try to do so and Yahoo says password is too weak even though it has 18 digits and upper and lower case letters.
If you're caught, someone on Yahoo answers has the solution: return to the old basic system. My address bar says
http://uk-mg42.mail.yahoo.com/neo/launch --- insert a /b for basic as follows, and you're in.
Opinion is that it's glitch in the new interface ... and that Yahoo will be losing even more subscribers to gmail