This worked fine a few weeks ago! All my photos are stored on the NAS in yearly folders and viewing from the Xbox brought them up in "HD" on my big screen, great for when people came round and no longer needed to cram around the PC! When I try to view them I now get a "The connection to your computer was lost. Make sure your computer is turned on, connected to your network, and is running media sharing software" message which is wrong as some yearly folders will show the folders inside and not others. I can play music if I select that so there no port or firewall blocking issues. I can also copy the files to the PC they came from in the first place and the Xbox can show from there (but what's the point having the NAS) and both PCs can read the folders fine so this must be an Xbox problem.
Is this a NAS issue, why does some work and not others. If this is a compatibility issue, has anyone else had the same problem and how did you get it?