fc -l only showing 16 commands not 500

[Mark Yieh]

I just noticed that when I try to recall my history of commands by  
issuing a "fc -l" command it only shows me the last 16 commands even  
though my $HISTSIZE is the default 500. Anyone know why it's doing  
this? I also tried to set my $HISTFILE to $HOME/.history just to see  
if that makes any difference, but it doesn't.

I'm using the default ksh shell on a GENERIC 4.5 kernel.