Use a different name for new strings.

MyTracks/res/values/strings.xml

@@ -672,7 +672,7 @@ limitations under the License.
       for all applications. See Settings -> Location access.">
     \'Location access\'
   </string>
-  <string name="gps_need_to_enable"
+  <string name="gps_disabled"
     translation_description="In the main view, the message on the top asking the user to enable
       GPS.
 
@@ -1176,7 +1176,7 @@ limitations under the License.
       indicating that GPS is not available and an approximate location is used instead.">
     GPS is not available. An approximate location based on cell towers and WiFi networks is shown.
   </string>
-  <string name="my_location_no_location"
+  <string name="my_location_no_gps"
     translation_description="When displaying the user's current location, a status message
       indicating that the current location cannot be determined.
 

MyTracks/src/com/google/android/apps/mytracks/content/DataSourcesWrapperImpl.java

@@ -165,7 +165,7 @@ class DataSourcesWrapperImpl implements DataSourcesWrapper {
         String setting = context.getString(
             GoogleLocationUtils.isAvailable(context) ? R.string.gps_google_location_settings
                 : R.string.gps_location_access);
-        toast = context.getString(R.string.my_location_no_location, setting);
+        toast = context.getString(R.string.my_location_no_gps, setting);
       }
 
       // Let the user know we have only an approximate location:

MyTracks/src/com/google/android/apps/mytracks/fragments/MapFragment.java

@@ -283,7 +283,7 @@ public class MapFragment extends Fragment
         String setting = getString(
             GoogleLocationUtils.isAvailable(getActivity()) ? R.string.gps_google_location_settings
                 : R.string.gps_location_access);
-        message = getString(R.string.gps_need_to_enable, setting);
+        message = getString(R.string.gps_disabled, setting);
         isGpsDisabled = true;
         break;
       case NO_FIX: