On Friday 21 July 2006 14:44, Erik P. Olsen wrote: > I know the display address usually (always?) is :0.0 and I would like to > understand what the elements of this address mean. Would someone be kind > enough as to point me to where I can read about this subject? man X see under section "Display Names". In short, the display address is of the form hostname:displaynumber.screennumber where the counting begins with zero, and hostname --- if left empty --- is assumed to be localhost. Hence one most commonly ends up with :0.0 :-) Best regards, :-) Marko