Hi Ali, On 08.09.2010 08:06, Abder-Rahman Ali wrote: > I have installed "xinit". > > Now, when I want to run "startx", I get the following: > > Abder-Rahman@Abder-Rahman-PC ~ > $ startx > xauth: creating new authority file /home/Abder-Rahman/.serverauth.1188 > xinit: Resource temporarily unavailable (errno 11): Another X server > instance is running on DISPLAY :0 > > Why is that? The error message indicated that "another X server instance is running", have you checked that? Accidentally I installed cygwin with X today and it worked out of the box (W7 Pro x64). HTH