I'm having a problem applying existing styles and loading new ones in ArcMap 10.1.
I go to customize > Style manager and i see that it is empty.
After, i click on Styles tab and i select from the list the existing ESRI style and also select a new one to add.
After i click ok the Style manager appears empty as it was in the beginning , i do not know if this is some kind of bug or either i need to enable some add-in or extension.