xscreensaver-data 4.23-4ubuntu2 (amd64 binary) in ubuntu dapper

 This package contains the so called "hacks" (the single screensavers
 that get displayed from a screensaver app) its split out to be used
 with programs like gnome-screensaver that bring no own hacks, but can
 display them. Additionally it contains the various tools to load text
 or images from external sources.