How do I stop duplicate sign on requests in Windows Live Mail  

Opens ok then requires a further sign in which can be cancelled and normal mail can be viewed and also---

My email address appears to have been hacked when getting mail from Yahoo as the Spam box is getting messages from my own Email address.  

Any help tro resolve these problems will be  gratefully received.

 George Fry  NZ

How do I stop duplicate sign on requests in Windows Live Mail  

Opens ok then requires a further sign in which can be cancelled and normal mail can be viewed and also---

My email address appears to have been hacked when getting mail from Yahoo as the Spam box is getting messages from my own Email address.  

Any help tro resolve these problems will be  gratefully received.

 George Fry  NZ