After I installed Bugzilla on my LAN it works great... the problem is when I try to commit a bug it gives me an *internal error* "cannot determine local time zone"

I have searched far and wide on google and looks like a pretty wide spread problem on Ubuntu and debian boxes. 

Please help.... I changed my server time zone, created a sym link to /etc/localtime ; I re-downloaded the perl modules... any thoughts? 

thank you

Jared