Smart links in RTIR not working

I’m running RT 3.0.12 and RTIR 1.0.5 on a Debian 4.0. I’ve down graded
the DBIx::SearchBuilder and all seems well except that when viewing
incidents or reports, IP addresses are no longer clickable.

Any ideas?

Regards,
Tony.
Tony Arnold, Tel: +44 (0) 161 275 6093
Head of IT Security, Fax: +44 (0) 870 136 1004
University of Manchester, Mob: +44 (0) 773 330 0039
Manchester M13 9PL. Email: tony.arnold@manchester.ac.uk