Using ArcMap 10.3, basic license.
I'm trying to create an address locator for Washington DC to geocode a list of addresses, something I've done several times for other areas. Today when I went to pick the Address Locator Style, the dialog is showing up empty (see attached picture).
I've repaired the ArcGIS installation & verified that the folder & files exist & the security settings aren't messed up. I cannot find any information on this issue online. I am at a loss.