Reindexing

[glw1]

Is there a way to force reindexing of the database? I imported 317 text items and neatly arranged them only to find out that words containing digits are *not* indexed by default. Most of my entries include precisely that, ie words containing digits which reference various things. I have now chosen this option and new entries are properly indexed I cannot find a way to force the database to be re-indexed for the old entries.

Help!