Error with ticket search builder

I am getting this error in the bottom right screen of search builder
periodically. Any ideas?

System is RT 3.4.5 on Postgres 8.1

error: RT::Attribute::Name Unimplemented in RT::Attributes.
(/usr/local/rt3/lib/RT/Attributes_Overlay.pm line 81)
context:

492: else {
493: my ( $package, $filename, $line );
494: ( $package, $filename, $line ) = caller;
495:
496: die “$AUTOLOAD Unimplemented in $package. ($filename line $line)
\n”;
497: }
498:
499: }
500:

code stack:
/usr/lib/perl5/site_perl/5.8.5/DBIx/SearchBuilder/Record.pm:496
/usr/local/rt3/lib/RT/Attributes_Overlay.pm:81
/usr/local/rt3/lib/RT/Attributes_Overlay.pm:73
/usr/local/rt3/lib/RT/Attributes_Overlay.pm:88
/usr/local/rt3/lib/RT/Attributes_Overlay.pm:119
/usr/local/rt3/share/html/Search/Elements/SelectSearchesForObjects:58
/usr/local/rt3/share/html/Search/Elements/EditSearches:75
/usr/local/rt3/share/html/Search/Build.html:99
/usr/local/rt3/share/html/autohandler:215
raw error

Thanks,
-Tim