Login Display name in FBA provider in sharepoint 2010 site

When using forms based authentication in Sharepoint 2010, suppose user is logged in with username "admin" and our custom membership provider name is "FBAProvider"... After logging in with this account, logged in user name is displayed like "i:0#.|FBAProvider|admin". How can make it display as it should be like just "admin"?

Thanx

Ashwini Pal