Update:
My SMP has now been running without issue since my post last Wednesday.
Since then I have at last been able to:
* add my Photos folder from my NAS to the Media library. This contains about 10,000 pictures. (Linux share)
* add Music contained on an Autonomic MMS. (Just under 480Gb - Windows share)
I have had these two disabled for the past couple of months as each time I attempted to play a photo slideshow or play any music the SMP would lock up.
Note that I switch off the SMP at the wall each night so the unit gets re-started at least once a day.
Kudos to jhl102 for your very incisive post into the SMP with BA NAS. Had the afore mentioned fix not worked then I would probably be trying your solution this coming weekend. Your analysis of the problem with the BA was very helpful.
Regards
slip