Moohlight1889 is not a valid yahoo ! messenger id

If you have a valid Yahoo E-mail ID and password you can log into yahoo messenger application

If on startup if you log in directly to your son's yahoo ID, then sign out and sign in as different user.

Please explain what is the issue exactly. Is it "You can't login with your ID and Password" or "The Messenger is not working". If you are unable to login with your ID and Password, try login with http://webmessenger.yahoo.com
If you are unable to login with it also just reset your password and login. If you can login with web panel, check if there is any prosy set inside messenger network preferences. Remove the proxy and try again. If no proxy found. Uninstall and restart the PC and re-install the latest yahoo messenger.
That's all.

Thanks for joining us. Have a nice day.

It is simple to log in on yahoo messenger. What you is to.
Click on the yahoo messenger icon.
Enter your ID and Password.
Then click Sign in. It will open.
So check your ID and password. If it is correct and try again.

Check if yahoo messenger is properly install in your computer. And if your I.D and Password is not properly entered that can cause that too. So try again,it might be technical problem. Try and re-install it again.

double click icon of yahoo messenger you will see sign id and password type there click signin

contact yahoo admin.

change ur password on website means yahoomail.com.sign in with ur id and change pass and put in some like new and then ok and again check on messenger .if not so try latest messenger or re-install ur messenger

the yahoo id is still shown if the contact has not set firstname/lastname/nickname. you can check this if you right click the contact and choose contact details.
in addition yahoo messenger 9 is out - try to upgrade

hello there! thanks for using Fixya.com!

alright, please try this option, reinstall the yahoo messenger from your pc or laptop, pls download the messenger directly from the website of yahoo. this may help you out.

Hi waynemcginty,
You can actually download the latest yahoo messenger version and then login to the messenger using a valid yahoo id. To check if your yahoo id is valid, try using it in a mail.yahoo.com page and if it works there, it will work in yahoo messenger too.