by superflexible on Thu May 05, 2011 3:19 pm
For this purpose, you need to turn on SmartTracking. This will remember the files already downloaded and ignore deletions (unless you tell it to do something when it detects a deletion). You could also use a date/time filter such as File Age: less than 1 day to rule out very old files in case one day the SmartTracking database needs to be deleted or rebuilt.