tracker status always 'Paused'

[Prunus dulcis]

Binary package hint: tracker

1) Ubuntu karmic (all updates till now [2009 Sept. 21]

2) tracker:
  Installiert: 0.6.95-1ubuntu1
  Kandidat: 0.6.95-1ubuntu1

3) when I install tracker I want it to index my files so I can search through them

4) tracker does not start indexing. Even when I say 'make new index' (I use German language, not sure about the exact phrase in English), it starts initializing and then immediately goes to 'Paused' - as checked by 'tracker-status'. Also restarting the system does not help as does not 'apt-get remove tracker' followed by 'apt-get install tracker'

ProblemType: Bug
Architecture: i386
Date: Mon Sep 21 15:10:46 2009
DistroRelease: Ubuntu 9.10
Package: tracker 0.6.95-1ubuntu1
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
SourcePackage: tracker
Uname: Linux 2.6.31-10-generic i686