Lovetopaint037, can I check a couple of things with you? You say this other name (let's say 'Fred') is shown in the ’To’ field, what is in the 'From' field (it should be something like [email protected])? Is Fred's email address there instead? Have you made a mistake when you say your name should be in the 'To' field. Unless you are sending an email to yourself, your name would never be in the ‘To’ field in an email header that you are writing unless you mean to mail yourself.
Do you have more than one email account with different names/providers?
What happens when you delete Fred's name in the 'To' field and start typing the name of another contact. Does the email application fill in the name of the other contact? Have you tried sending an email to yourself (To [email protected], give it the title 'test1' and send it from [email protected])? What happens?
If you have lots of email contacts stella1949's sugestion would be a last resort, I would try to work out what is wrong first.
I hope you are not offended by these questions, but it is difficult to help someone you know very little about and you have asked for help.