Can I change how my name appears on my friends chat?

I want to change my last name.i changed but when i mail to my friends my old name appears in their inbox?

• when i send mail to my friends, my old name was displayed i want to change that display also. help me plz

• Answer:

  To change how your name appears in other peoples’ incoming mail with Here’s how to do it: For “all new yahoo mail” 1. Click Options in the upper-right corner of your Yahoo! Mail page. 2. Under “Management”, click General Preferences. 3. Right at the top, in the “From name:” type in the name you want to show. 4. Click Save to put your new settings into effect. For “yahoo mail classic” 1. Click Options in the upper-right corner of your Yahoo! Mail page. 2. Click mail options. 3. Click general preferences>type in the name you want to show in your mail. 4. Click Save to put your new settings into effect.