Somewhat OT: First X uses DRI; 2nd doesn't

[Kent West]

I'm currently sharing a Debian GNU/Linux box with my sister, and she 
generally starts X on VT7 via xdm, and I start my X on VT8 with 
"startx -- :1" manually.

I finally got direct rendering working on her X, but when I start up my 
side and run "glxinfo|more" I get the following error:

Xlib: connection to ":0.0" refused by server
Xlib: Client is not authorized to connect to Server
name of display: :1.0
display: :1  screen: 0
direct rendering: No


Any ideas how to fix this?

Thanks!

Kent