Please let me know if you resolve this. It's driving me nuts! Thanks

Thanks KMC, looks like we might have to live with it. :(

Hi again. I have found an excellent work around that allows you to stream to apple tv from Pogoplug via iPad2 or iPhone 4S (have only tried IPad2) using AirPlay. It's an App called BuzzPlayerHD. It recognises the Pogoplug under the Samba FTP option and allows you to browse your Pogoplug and play videos. If your ATV2 is on you just select External Display on the menu bar at the bottom and the video plays perfectly on screen whilst the IPad screen switches to a 'video being played externally' screen. It's very impressive and no jailbreak is required. You have to turn on mirroring first for some reason but output is Aiplay and full screen. Cheers. Barry

I did some additional research on my work around and came across a way to automatically share my drive at start-up using the below link. The only change I made to the instructions in the link is to delay the task for 10 minutes after start-up. That way I know the drive is loaded and the Pogoplug software is done doing its thing.

http://www.aboutfortunate.com/Technology-Blog.aspx?entid=14

I'm using Pogoplug thru a Seagate Dockstar, but when I use XBMC on a ATV2, the drive appears under the Windows Network (SMB) option, not the UPnP Devices option. I've had no problem playing video stored on my external harddrive connected to the Dockstar. I'm new to XBMC, but this makes the ATV2 so worth it based on price and small form factor and ease of use.