I am testing SharePoint 2010. I am trying to create a local user (workgroup user or not AD user) in Windows Server 2008 R2 and create a new list. The list would contain a person and group as column, and show their name (with presence).
I read an article somewhere, where I can override user profile or data from a local user that I create. This looks kind like Domain\username (workgroup\john.doe) in the person and group column to display John Doe.
I have done this a couple of times and it changes after about 40 minutes after I have changed a user profile. It just changes without me noticing it, it is not directly changed when I add an item to the list.
Can you explain what is happening?