Using SharePoint 2010, some user names in the people pickes and User Information List are shown by John Smith. Others are companyDomain\jsmith. We would like to correct this for consistency.
I have checked our active directory records, and there is no difference in how the accounts were created there. The only clue that I have is that newer employees are formatted in the latter way and older employees the former. This makes me suppose that someone made a change somewhere in SharePoint