X server of RH4.2 problems

[jianping jiang <jianping cis ohio-state edu>]

>Hello,
>
>I just installed RH4.2 in my machine. I can start the X server,
>however it's very unstable. Sometimes, when I was editing something
>or just issued a command, the X server crashed. It said somthing like:
>
>Error opening security policy file /usr/X11R6/lib/X11/Xserver/SecurityPolicy
>
>Fatal server error:
>Caught signal 11. Sever aborting.
>
>I checked after that and found there is no such directory under
>/usr/X11R6/lib/X11, so no that file exist.
>Just want to know what this problem is, and how to fix it?
>If further info is needed, let me know. Thank you veery much!
>
>---Jiang
>
>