/usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.8
/usr/lib/perl5/site_perl/5.8.5
/usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.8
/usr/lib/perl5/vendor_perl/5.8.5/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.5
/usr/lib/perl5/vendor_perl
/usr/lib/perl5/5.8.8/i386-linux-thread-multi
/usr/lib/perl5/5.8.8
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You shouldn't mix 5.8.5 and 5.8.8, they're not binary compatible (one has Perl_Tstack_sp_ptr, the other one doesnt have Perl_Tstack_sp_ptr, among other symbols)

Remove whatever use lines you have, and use the correct bin/perl to install modules where you need them (say .....  perl  -MCPAN -e shell )

Only use bin/perl5.8.5 to install modules for bin/per5.8.5

Only use bin/perl5.8.8 to install modules for bin/per5.8.8