Tom, Although the Filters module builds ok with 5.6.0-RC2 the behaviour of the debugger seems to have changed PERL_DL_NONLAZY=1 /home/paul/perl/install/redhat6.1/bin/perl5.6.0 -Iblib/arch -Iblib/lib -I/home/paul/perl/install/redhat6.1/5.6.0/lib/5.6.0/i586-linux -I/home/paul/perl/install/redhat6.1/5.6.0/lib/5.6.0 -e 'use Test::Harness qw(&runtests $verbose); $verbose=0; runtests @ARGV;' t/*.t t/call..............ok t/cpp...............ok t/decrypt...........ok 2/5 Loading DB routines from perl5db.pl version 1.07 Editor support available. Enter h or `h h' for help, or `man perldebug' for more help. t/decrypt...........ok t/exec..............ok t/order.............ok t/sh................ok t/tee...............ok All tests successful. Test 2 uses this to silence the debugger $ENV{'PERLDB_OPTS'} = 'noTTY' ; This feature of the debugger seems to be broken in 5.6.0-RC2. PaulThread Next