Problem with Screen in Horizontally Reduced

The simplest answer is to replace the monitor. You have what is called an "imminent failure", meaning that the monitor could go out permanently without any further warning.

The probable cause is the monitor power supply. It is usually cheaper to just get a new monitor than to try and replace the power supply.

VA

Press the OSD (On Screen Display) button on the face of the monitor. You'll find controls to control the size & position both horizontally & vertically.

disconnect all the cables except the power cable and then turn the monitor on you would see a test screen if it still happens your monitor is faulty and better buy a new one as repairing is usually expensive .also check you warrenty usually its for 3 years

well that could be because the screen is going bad. you might want to get another one or take it in to get it fixed, no more than 100 to fix your screen.

Click the Menu button and use the '+' & '-' signs to select restore factory settings. Check if you get the same line in the BIOS screen, if so then you would need a replacement.

You would better served replacing monitor you can buy one for about $100-$120 dell if you lie has one for $99

reduce the hardware acceleration on it. I resolved it by reducing acceleration and changing my screen size. It works. I wanted higher resolution but it doesn't seem to be possible for some reason.
Good luck.

THE PRESCRIBED ARROWS ARE FUNCTIONING WELL FOR INCREASING THE VERTICAL SIGE OF THE DISPLAY OF THE MONITOR.BUT THE HORIZONTAL AROWS WHEN OPERATED ARE NOT ABLE TO INCREASE THE HORIZONTAL DISPLAY OF THE MONITOR TO FULL SIGE. PLEASE GIVE APPROPRIATE SOLUTION.
THANKS

I had the same problem. I fixed it completely today. The horizontal lines disappeared. IT IS DEFINETLY THE DEVICE DRIVER. I confirmed my monitor model tyope (dell M783s) and downloaded the specific driver for this monitor.

I had to do these exact steps or did not work.
1) with the problem screen, disabled the display adapter under the Hardware/Device Manager settings.
2) Restart the PC
3) Boot will come up with brown lines still but the screen will low resolution of 600x800.
4) Then I installed the correct device display monitor driver onto the pc. ( you may need to scan for new hardware, then choose the directory with the new hard drive.)

If you need step by step... just reply back.

i had a similar issue with my dell E172FPB, I have never seen a E173FP but this link might help you
http://syscon.wordpress.com/2007/07/13/dell-dell-e172fpb-lcd-backlight-repair/