DB thinks there are '0' private files!!!!!

Hello,
I just installed the module, Private Upload Status is as follows:

· Public File Folder: 'sites/default/files'
· Private File Folder: 'sites/default/files/private'
· sites/default/files/private exists and is writable. Great.
· You have an .htaccess file in private folder. Great.
· Your private folder is not accessable. Great!
· File download method is set to public. Great.
· There are no old-style private files hanging around. Great.
· There are '3' files in the private folder, and the DB thinks there are '0' private files.
· There are no public files attached to private nodes. Great.
· Uploaded files in db: '0' files attached to '0' nodes.

Everything looks ok there, except the 3rd last line line:

“There are '3' files in the private folder, and the DB thinks there are '0' private files”

Its coloured in pink on the screen. I’m trying to sell ebooks on my website.
Can it be fixed? Any ideas on where I've gone wrong?

Thanks
Richard