I.R.I.S. Cardiris Pro 5 - Manual (Page 78)

Chapter 7 – Organizing business cards
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you're displaying a "hitlist". The status bar also indicates the
number of cards that have been found.
If none of the cards meet the search criteria:
 the application window remains empty and the status bar
confirms that there are no cards to display. (album view)
 the card image is empty, no data fields are filled out and the
card status is grayed. (card view)

To redisplay all cards after a search, erase the search term and
press Enter or click the button All cards on the button bar.
F
INDING AND RESOLVING DUPLICATES
Cardiris is a comprehensive card database solution. It allows you to
import business cards from and export them to other databases,
synchronize entire databases, etc. To avoid that your database is
infected with duplicate cards or obsolete information, Cardiris
disposes of a convenient Duplicates management function.
To find and resolve duplicates:

Click the Find duplicates icon on the main toolbar.