It sure looks as if $db_avail= new Sybase::CTlib $g_pfsecid,$g_pfsecpw,$g_pfsecsrv failed and as $db_avail now does not contain a valid reference to an object, $db_avail->ct_execute($sql) gives you this error. So it seems Sybase::CTlib is loaded but does not work.

This may or not may be due to the fact that Sybperl (of which Sybase::CTlib is/was a part) is not ported to all systems.

M. Peppler, author of Sybperl, writes on his website:

Note: Recent versions of ActiveState (perl 5.8.x) don't offer PPMs for sybperl or DBD::Sybase any more. As a replacement there is a PPM repository maintained by perlmonk's "crazyinsomniac" at http://crazyinsomniac.perlmonks.org/perl/ppm/. I have not used these packages, so I can't comment on how well they work.

Could it perhaps be that an old version of Sybperl was installed? A search on CPAN showed no hits for Sybase::CTlib anymore (except Apache::Sybase::CTlib), not even in the Sybperl distribution.

I suggest you contact the author of Sybperl and ask for his comments.

CountZero