[kh99]

Did you use the choices under Attachments > Attachment Storage Type? I first tried (on a test site) changing the setting in the options. That seemed to change the setting to say they were in the file system but it didn't change the database. Then I found the Attachment Storage Type menu, moved them back to the database, then moved them to the file system. When that finished there was a screen telling me to compare two numbers to make sure all attachments were moved successfully, and if they were you next had to click on the link to delete them from the database and recover the space from the table.