Sa-update problem

[Gregory Wong]

Hi everyone. I was trying to run sa-update on both of my mail scanning servers but get the following error message:

root at smtp1:~# sa-update
Can't locate Archive/Tar.pm in @INC (@INC contains: /usr/share/perl5 /etc/perl /usr/local/lib/perl/5.8.7 /usr/local/share/perl/5.8.7 /usr/lib/perl5 /usr/lib/perl/5.8 /usr/share/perl/5.8 /usr/local/lib/site_perl) at /usr/bin/sa-update line 78.
BEGIN failed--compilation aborted at /usr/bin/sa-update line 78.

Any ideas on how to fix this? I'm pretty sure I already have perl installed...
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