Just saw this on our demo server:
root@phppgadmin:~/htdocs/webdb/conf# /usr/local/pgsql-7.3.3/bin/psql -p5473
phppgadmin
psql: FATAL:  cannot open segment 1 of relation
pg_trigger_tgrelid_tgname_index (target block 8310112): No such file or
directory
Any solution?  Happens on all databases.
Chris