I cant send or receive email, I have upgraded to windows live mail from windows mail and still cant send or receive, the error message I get is below:-

Unable to send or receive messages for the account. An incorrect password was entered. The next time you send or receive messages, you'll be asked to enter your user name and password for this account.

Server Error: 0x800CCC90
Server Response: -ERR [AUTH] Username and password not accepted.
Server: 'pop.sky.com'
Windows Live Mail Error ID: 0x800CCC92
Protocol: POP3
Port: 995
Secure(SSL): Yes