Thanks for the reply. Unfortunately, I don't think that was the problem that was stopping the ActiveCopy. What I wound up doing (I think) was going under users/myname/appdata/Roaming/Pogoplug/ and deleting all of the files there.

Then, I uninstalled the Pogo drive software. Then I reinstalled the software. Then I had to go into each ActiveCopy and change the location so it would find the folder. Without remapping, the ActiveCopy still didn't see the path, thinking it wasn't on the LAN (even though it was).

On the 2nd computer, I had to do all of the above, and it still didn't work. Sent out a new share invitation from my computer, and it still wouldn't work (drive was greyed out in ActiveCopy). Went into MyPogoPlug web app from my computer, and had to re-enable WFS file sharing from "read" to "full access". Not sure why it reset, but it did.

Voila. Drive not greyed out. Then I went in and remapped the Active Copy folders ("change location").

Working OK again on 2nd computer!

It was a pain in the neck for something that should have been relatively easy.

As mentioned in the first post, I had originally deleted the .cedata folder and the Ceid file from the drive; I'm not sure if that was also necessary for this fix.

Finally, leave the workgroup name as "WORKGROUP" in the Pogo web app. Under Win7, even though you're in a Homegroup, you're also in "WORKGROUP". It still won't show up in your Homegroup, but who cares? It shows up as a drive on your computer and Active Copy works.

Hope this helps somebody else (assuming you can follow my rambling explanation).