Here's a strange one for you! I have a WD Mybook World NAS drive and have tried using my SGS2 to view pictures from it over wifi using the allshare application. It can go into the photo folder and displays each picture as a thumbnail pretty quickly but when I tap to look at the picture it says "added" in a small pop up followed by an ERROR box saying "Unable to Play" - continue or cancel buttons displayed. It can download pictures to a download folder if you press and hold the thumbnail but it does only download the thumbnail to the phone which is badly pixellated when you view it. Don't think it's to do with the NAS but wondering if anyone else has had this problem? For the record it plays mp3 files from the NAS no problem across the network. Thoughts welcome!!