XINIT错误，请大家指教

kent2004

[root@localhost ~]# xinit


Fatal server error:
Server is already active for display 0
        If this server is no longer running, remove /tmp/.X0-lock
        and start again.

Xlib: connection to ":0.0" refused by server
Xlib: Invalid MIT-MAGIC-COOKIE-1 key
giving up.
xinit:  unable to connect to X server
xinit:  No such process (errno 3):  Server error.

lb_bn

x-server不是已经启动了吗？？