cannot connect to X server :0

[1SANTA1]

pouzivam linux kubuntu 6.10 a mam ho asi 2 mesiace
co to znamena, a ako to mozem opravit thx

tomas@1SANTA1-Linux:~$ sudo kate /etc/apt/sources.list
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode:  147
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 169
  Major opcode:  147
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
DCOPClient::attachInternal. Attach failed Could not open network socket
Link points to "/tmp/ksocket-root"
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

kdeinit: Can't connect to the X Server.
kdeinit: Might not terminate at end of session.
Link points to "/tmp/kde-root"
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

kded: cannot connect to X server :0
kded: ERROR: KUniqueApplication: Registering failed!
kded: ERROR: Communication problem with kded, it probably crashed.
QObject::disconnect: Unexpected null parameter

[Robin M.]

co napíše

sudo startx?

[1SANTA1]

tomas@1SANTA1-Linux:~$ sudo startx
Password:
xauth:  creating new authority file /home/tomas/.serverauth.8948

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.

tomas@1SANTA1-Linux:~$
ak som mal napisat startx tak my vypise toto.