Thanks Helen I have OS7 on iphone 4s and Ipad air - neither are showing contents . The UI and the hard drive both show that there is info. The UI says it's indexing etc. I synced a directory in the drive (maybe 150gb). I gave it a day or so just in case it took time to update but no joy. I have BT sync installed on another system at home and it workd perfectly. It just seems the work one is causing trouble. I changed broadband providers and modem just in case it was that. The data is on a d link NAS. I first tried installing BTSync on the NAS but it simply wouldnt work - no idea why