FreeBSD 5.2.1 - P5-Proc::ProcessTable and other modules not working?

Hi,

I've upgraded from FreeBSD 4.8 to 5.2.1 and have
noticed a number of script don't work...  One perl
module i've found so far is:

Proc::ProcessTable.  The subroutines just return
no result  (even the examples given at CPAN).

Another script (which uses flow-tools) has started
using an enormous amount of memory.. All versions
are the same except for actual FreeBSD.

Can anyone help?  Do I need to re-install FreeBSD
to a lower version?  If so, what version?

Thanks,
Andrew

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