I seem to have a small disaster on my hands 
 
  Can anyone tell me how to overcome a synchonisation problem where I have deleted all of my contacts? 
 I'm using Windows XP Pro and have tried looking for a way where I could turn it off without making any changes and therefore, be able to start it again with the original Contact file.  I've tried looking for a ".pst" file to restore the folders but can't find one with the normal searches. 
 Any ideas gratefully received.