allow root login when using gdm

[Damian Slavek <damianks@new.rr.com>]

I'm running Woody and using gdm for logins. What do I have to change in
order to allow root to login? The machine boots directly to X. 

I'm not new to linux, just Debian.  RedHat was starting to scare me.

Thanks in advance for any info.

Damian