[newbie] cant install

Hello All. subj. in second stage install - -X11TransSocketUNIXConnect: Can`t connect: errno=111 -X11TransSocketUNIXConnect: Can`t connect: errno=111 data/time skipGtk-warning **: cannot open display: :0 at /usr/bin/perl-install/my.gtk.pm line 139 Install exit abnormally. how fix this trouble?

[newbie] cant install

Hello All. subj. Mandrake 7.0.2 (Air) in second stage install - -X11TransSocketUNIXConnect: Can`t connect: errno=111 -X11TransSocketUNIXConnect: Can`t connect: errno=111 data/time skipGtk-warning **: cannot open display: :0 at /usr/bin/perl-install/my.gtk.pm line 139 Install exit abnormally.