>> > Hi, > > My first question would be has any hardware (graphics cards, ram, or the actual monitor / screen) changed since installation? Might also be worth checking connectors inside case if it's a desktop PC that has been moved! no > The next place I would look would be in the xorg.log(s) located in /var/log any lines that look like errors post back up on this list. > NOTE: You can use the console (CLI) to navigate to and view the logs if you cannot get to a working Desktop Environment. Use cd /var/log to navigate to the log directory, then use the ls -a command to LiSt the files in that directory and then open the log with nano (nano xorg.log) > in xorg.log, i found the error something like didn't parse 10 line of xorg.conf. i remember yesturday i edited that file and add some line there. By deleting that line and rebooting it, problem solves :-) somewhere i read to install current nvidia drivers for solution and i installed that today too. can you tell me more about x.conf file and about this error for knowledge sake? thanks for help