Comment 4 for bug 235956

the fix we use is supposed to add the proper xauth cookie to your session which seems to work for many other people... are you using gutsy or hardy ? note that the debian patch you are pointing to all the time was a known bad quickfix we added, the later patch closing the issue is used in debian as well now. is the ~/.Xauthority of your user on the server writable (i.e. not owned by root because you used k3b with sudo or differently funny things ? )