I help manage a small workgroup of four Mac clients and a Retrospect server (v12.5.0.111). They back up daily to a pair of external HD's. One of the "sources" got removed and re-added on the server and now Retrospect is treating that system as if it were new. There is not enough space on the backup set to capture a complete, new backup. So my question is...short of doing a recycle on the backup media is there a way to purge the old backup data for just that source?