So, in my earlier travels, I explored the Repconn headquarters and looted the two BoS corpses. At the time I had barely begun the ED-E quest. Now, something like 30 hours later, I am at Hidden Valley. I do some of the quests there, including turning in the tapes from the patrols. My ED-E quest updates and says I should go to Repconn to find the patrol (that I looted earlier in the game). I head back there and get to the empty corpses and my quest updates again. This time it suggests that I loot the corpses to see where to go next. Now what? I have gone back to talk to the paladin but he doesnt mention anything about ED-E. I can not get the quest to move forward. How do I fix this? Can I fix this?

E-DE needs to be your compagnion when you talk to some people to get an advancement in the quest.
Talk to the old woman who owns the scrapyard (near Helios) and go through all the communication possibilities. When you end conversation with the old woman E-DE should blurp out information. next go to the scientists in Helios (the smartest one) and talk to him. Go through the communication possibilities with him too.
After the end of te conversation E-DE will come alive again and gives you some other pointers.
This will lead you to the followers of the apocalypse camp at Freeside or someone at hidden valley.

Heads up, make sure to empty E-DE when handing her off.

I'm having the same problem. Stuck at the missing Holodisk. I've tried talking to the people that trigger the messages but it doesn't seem to work.

Ok FullMetal.....I can give a fix. Go to the dead Brotherhood of Steel guy leaning on the wall....open your console and click on his dead body. It should put his ID on the top of the screen. I think it was (0015a7bd). Type resurrect (0015a7bd). Close your console and he'll pop back up. Once again open your console and click on him. Then type kill (0015a7bd). Loot him and there you go.

ED-E have so many possible activation points.....just go to another one.....

Thanks. One quick question, how do you get the npc's ID to show up? I did try typing in 0015a7bd but that did not work.

For his quest, I actually managed to somehow glitch it? I just went to Old Lady Gibson, the actual scientist guy at Helios 1, and the boss scientist at Camp McCarran. When I was talking to the guy at Camp McCarran, ED-E spoke up the first time. Then I left the building, finished the Vault 22 mission, came back and somehow talking to the same guy triggered ED-E again.

Well, I went back to all the people that trigger his speech and nothing. Hoping that the next patch addresses this. Though if anyone knows how to get a npc's id number to show up, I can try to resurrect that BoS paladin.