CentOS 5, pg8.4.2, could not read time zone file

On my CentOS 5.0 box with the RHEL version of Postgresql 8.4.2, the
initial initdb step fails with the error

  "WARNING:  cold not read time zone file "Default" : permission denied.
  FATAL:  invalid value for parameter "timezone_abbreviations": "Default"

A search of the mail list and google showed this appearing on Windows,
but I am on Linux.
Anyone have any workaround?

--
Wade Hampton