cannot start X

[Aaron Maxwell <amaxwell@phy.ucsf.edu>]

Hi, when I run startx, I get the following error:

>>>>>
yomama[5]% startx

X: user not authorized to run the X server, aborting.
<here it hangs, so I press ^C>
xinit:  unexpected signal 2

yomama[6]% 
<<<<<

My .xinitrc is real simple:
>>>>>
exec rxvt &
exec rxvt &
exec enlightenment
<<<<<

I'm running a fresh woody, with xserver-common version 4.0.2-1.  
Can anyone suggest a fix?

Thanks in advance.
Aaron