I understand your concern.
1.It might be your power cord, please check that BOTH monitor and tower power cords are in the powerpoint board orr what ever you have.
2. Go to control pannel than go to display and CHECK that the monitor is active, and the right resolution.. ect..
3. if you have any kind of mode buttons on your monitor screen, than make sure the monitor has the correct options.
4. Put your computer in safemode by rebooting your computer and pressing the "F8" button every second untill the start menu appears, click, run the computer in safe mode, and than do the 3 points as i have given for you.
POINT: NEVER EVER touch the monitor screen, it can cause the problem that your having now.
If all this stuff dosen't work, please tell me how old the monitor is.. thanks!!
I've been noticing that my monitor has been twitching right to left and after a while it starts to get annoying, I have no idea how to fix this I tried lowing the resolution and no effect, I thought it might have been my video card, but I borrowed a video card from a friends system and the same thing happens, so I m thinking my monitor is dieing is in less its something else.