Issue with Address Locator 10.1

[MelissaRad]

My "North America" Address locator is gone from the address locator selection list. Has anyone ran into this problem? I am not able to geocode as the only locator I have now is MGRS. Looks like Esri wont allow users to remove defaul locators, so I'm sure I didnt remove it.
Thanks for any help!

[SaisudhaVivekanandan]

Starting at ArcGIS for Desktop 10.1 SP1, the default locator options for geocoding have changed. The only locators that appear in the list of default address locators (populated from the DefaultLocators.xml file) after the install of SP1 are the ArcGIS Online World Geocoding Service, which points to http://geocode.arcgis.com/arcgis/services, and the MGRS Military Grid Reference System locator. The locators pointing to the geocoding services at http://tasks.arcgisonline.com/arcgis/services are no longer included in the DefaultLocators.xml file after installing ArcGIS for Desktop 10.1 SP1.

Changes to default geocoding locator options at ArcGIS for Desktop 10.1 SP1
http://blogs.esri.com/esri/supportcenter/2013/01/04/changes-to-default-geocoding-locator-options-at-...