debian:/home/kde4# startx
xauth: creating new authority file /root/.Xauthority
xauth: creating new authority file /root/.Xauthority
X: warning; process set to priority -1 instead of requested priority 0
Fatal server error:
Server is already active for display 0
If this server is no longer running, remove /tmp/.X0-lock
and start again.
Invalid MIT-MAGIC-COOKIE-1 keygiving up.
xinit: Resource temporarily unavailable (errno 11): unable to connect to X server
xinit: No such process (errno 3): Server error.