It seems that many (including me) have problems with the annoying keyring that shows up every time I do a login. To solve the issue I just had to go to System->Preferences->Password and EncriptionKeys and in there you can found 2 keyrings: a default one and a login one which is unlocked at login time. What you have to do is delete the default keyring (Warning you will loose all passwords entered before in applications, like wifi, chat, etc.) which still appears in the list after that... a bug maybe. The select the login keyring and make it default (right click menu).
Now enter all passwords again as needed in applications and I hope everything goes back to normal.