If anybody has any general advice they'd like to offer, I'm all ears Had TDS3 for over 12 months & it's been running fine on XP Pro till now... Drive file scan hangs: Background prior to problem Re-installed the OS & made it a stand alone box. I copy the Radius TDS3 file from a dummy internet connected computer after I update that machine TDS3 v220.127.116.11. Default config start up scan, works correctly. Nominated file scans also work. Noted that it tends to hang on particular folder during drive scan. Excluded the folder scan progressed further to another folder which also hung. Removed flag from Deep Search - no change Although some consistency in hanging on the same initial file type "DS_STORE file"... it does the same later in c:\Windows & its not limited to any one folder. Any ideas on what to do next?