by Mike Hanratty.
I have investigated a little further. I have tried to download the remaining files. The first 5 actually start to download and because they are relativly large I cancelled the downloads. All the remainig files even though they are listed as having sizes of many MB, all complete their downloads in a few seconds and all have the identical downloaded size of 97.3kB. Very weird.
So, when I get time I am going to try and find each of these newly offending files in the database as per Ken's instructions above then delete each file if it exists then delete the database entry.
I'll post here again when I have given it a try. Could be as late as Friday.
Even if it solves the problem, the solution will open more questions than it answers!!!!!!!