follow up: xhost: unable to open display ":0.0"

[jbk]

> The mystery is that up until this upgrade to Fc4 I was able to elevate 
> myself to root privilege status with "su" and then from that elevated 
> status issue "su -" and become root, all maintaining connection to the 
> Xserver. Now, I can no longer follow that pattern. If I want to maintain 
> connection to the Xserver I must "su -" directly from the unprivileged 
>  user status.
> 
> On the other machine that I did an "install" of Fc4, and then copied 
> back the profiles and config files to the user accounts, I can follow 
> the old pattern of privilege elevation as I am acustommed to.
> 

After finishing yum update the symptom has gone away.

till next
	Jim