Thanks for the information…

  1. Webshots as the screen saver
  2. Scan for virus
  3. Loop
  4. Change screen 3 seconds
  5. All local disks
  6. Scan all archives (contents)
  7. Both sensibility choices (all file and extension check)
  8. No exclusions
  9. Interative action if virus were found
  10. All packers
  11. No alerts

Yes. But, maybe, when I’m not logged to any user the avast screen saver is running too (is the ‘windows’ default)…