When I start a script using Net::SSH::Perl I get the following messages.

Math::BigInt::GMP is missing method '_one' at /usr/local/lib/perl5/site_perl/5.8.7/Crypt/DSA/KeyChain.pm line 6
Cannot load outdated Math::BigInt::GMP v1.18, please upgrade at /usr/local/lib/perl5/site_perl/5.8.7/Crypt/DSA/KeyChain.pm line 6

libgmp 4.1.4 is installed. What should I look at?

Thank you much.

Radek