You will find that titles such as 'Urgent' and 'Help me' do not elicit the sort of favourable replies you are hoping for.
Urgency is relative.
Now: It sounds like you have the incorrect resolution and/or frequencies being sent to your monitor. Read the man pages for 'xorg.conf' and following the detailed info provided in there, adjust your /etc/X11/xorg.conf file by inserting the correct vertical and horizontal frequencies and a resolution supported by the monitor.
Then, restart X.
Best of luck