Forum:I can't find ED-E

While at the RepConn Test Site and during a fight ED-E wandered a bit off, went unconscious, and now I can't find him. He show's up on the map as being at the RepConn site, but just on the large map, not the local one. Went back to the Lucky 38. Didn't work and I wasn't able to get Rex to follow because it said that ED-E is still with me. Did the Vault 22 trick, which didn't work. Havn't tried going back to Primm yet. Any ideas?