+<sect1>I updated my Linux distribution and now Spider cannot read the users file or the dupefile, what is the problem?
+
+<P>
+Almost certainly this is a change in the db format of perl. Follow these
+few steps to correct the problem.
+
+<itemize>
+<item>stop the cluster (disable any autostart in inittab)
+<item>cd /spider/data
+<item>issue the command perl user_asc
+<item>restart the cluster
+</itemize>
+
+That should solve the problem.
+
+<sect1>Since I last updated I seem to be getting duplicate spots appearing.
+
+<P>
+What has probably happened is that the dupefile has got corrupted in
+some way. Simply delete the /spider/data/dupefile and restart the
+cluster. It may take a little time to become fully functional but
+should solve your problem.
+