In some cases, I prefer Activestate Built 522 or 5.00503 to the 6xx-Builts, because they all seem to have memory leaks, and even sometimes run very, very slowly, especially when using more RAM than one GB (under Win2k as well as under Solaris).

Best regards,
perl -e "print a|r,p|d=>b|p=>chr 3**2 .7=>t and t"