error:  Can't call method "quote" on an undefined value at /usr/lib/perl5/site_perl/5.8.1/DBIx/SearchBuilder.pm line 645.
 
context:  ...   
640:   
641:  #if we're explicitly told not to to quote the value or 
642:  # we're doing an IS or IS NOT (null), don't quote the operator. 
643:   
644:  if ( $args{'QUOTEVALUE'} && $args{'OPERATOR'} !~ /IS/ ) { 
645:  $args{'VALUE'} = $self->_Handle->dbh->quote( $args{'VALUE'} ); 
646:  } 
647:  } 
648:   
...   
 
code stack:  /usr/lib/perl5/site_perl/5.8.1/DBIx/SearchBuilder.pm:644
g /usr/local/rt3/lib/RT/SearchBuilder.pm:132
g /usr/local/rt3/lib/RT/Tickets_Overlay_SQL.pm:382
g /usr/local/rt3/lib/RT/Tickets_Overlay.pm:2007
g /usr/local/rt3/lib/RT/Tickets_Overlay.pm:1722
g /usr/local/rt3/local/html/Search/Listing.html:104
g /usr/local/rt3/share/html/autohandler:163
g