Video displays only running pixels - eMachines ET1161-07 Desktop PC

Its because the display drivers are not installed, try installing display drivers

Liquid Crystal Display (LCD) screens use less energy and display a clearer picture than the Cathode Ray Tube (CRT) displays that preceded them. These new LCD screens now dominate the computer monitor market. From time to time, however, pixels can become stuck and a green line can display on the screen. Removing this line is sometimes possible without sending the screen to the manufacturer for expensive repair.

Locate the pixels that are stuck on the screen. Download a free screen repair software program, such as UD Pixel or JScreenFix. Run the software and allow it to find and attempt to repair the stuck pixels. Turn off the LCD monitor. Apply the damp cloth directly over the stuck pixels and use a gentle pressure to spread the liquid within the screen.
Things You'll Need Pixel repair software Damp cloth LCD screen 5 Ways To Fix A Stuck Pixel On Your Screen
http://www.makeuseof.com/tag/best-software-solutions-to-fix-a-stuck-pixel-on-your-lcd-monitor/

Firstly you have not mentionrd thr Make & Model of your monitor.
Assuming it's a LCD Monitor you could try the following:

Modern monitors have a 'native resolution'. While most LCD monitors can display a wide variety of screen resolutions, the native resolution will always look best, since this is the screen resolution that matches the number of pixels inside the display. Any other screen resolution may look blocky or distorted, since the number of pixels used in the picture will not match the actual number in the display.

You can adjust your computers display resolution easily. For best results with your monitor, you should use the latest display drivers and monitor drivers and run your monitor in its native resolution. For more information on updating your display drivers, see this link.

Also have a look at this video

1080i vs 1080p - Similarities and Differences Between 1080i and 1080p
How 1080i and 1080p Are Both The Same and Different
1080i and 1080p are both High Definition display formats for HDTVs. 1080i and 1080p signals actually contain the same information. Both 1080i and 1080p represent a 1920x1080 pixel resolution (1,920 pixels across the screen by 1,080 pixels down the screen). The difference between 1080i and 1080p is in the way the signal is sent from a source component or displayed on an HDTV screen. In 1080i each frame of video is sent or displayed in alternative fields. The fields in 1080i are composed of 540 rows of pixels or lines of pixels running from the top to the bottom of the screen, with the odd fields displayed first and the even fields displayed second. Together, both fields create a full frame, made up of all 1,080 pixel rows or lines, every 30th of a second.
In 1080p, each frame of video is sent or displayed progressively. This means that both the odd and even fields (all 1,080 pixel rows or pixel lines) that make up the full frame are displayed together. This results in a smoother looking image, with less motion artifacts and jagged edges.
Differences Within 1080p 1080p can also be displayed (Depending on the video processing used) as a 1080p/60 (Most common), 1080p/30, or in 1080p/24 formats. 1080p/60 is essentially the same frame repeated twice every 30th of a second. (Enhanced video frame rate.) 1080p/30 is the same frame displayed once every 30th of a second. (Standard live or recorded video frame rate.) 1080p/24 is the same frame displayed every 24th of a second (Standard motion picture film frame rate.)
For more detalis visit http://hometheater.about.com/od/televisionbasics/qt/1080ivs1080p.htm

Native resolution: 1280 x 1024 @60Hz, That is what you need to set the PC video resolution to. Running XP? Boot up in safe mode (hit F8 while booting up), set the resolution to 640x 480, then reboot into normal mode, reset the resolution to 1280 x 1024 @60Hz.

Cardinal Rule 1
NEVER PLAY GAMES ON YOU MACHINE....
Cardinal Rule 2
If you insist to play games....go to a galeria and use the games video machine there.....
a few $ spent there will save your laptop....
Laptops are not ment for playing heavy games that require strong graphic card and heavy RAMs...

i thiink your gfx card does not support required version of pixel shader....google for ne hack of pixel shader for the game..

Pixelation/artifacting is usually indicative of a problem with video RAM (IE: The video card has a hardware problem) Since the Video is integrated into the motherboard, that means a motherboard replacement. ($150 to $200 for a replacement MB on Ebay)

Try updating the drivers for the 8800gt, if that doesnt work, try installing a codec pack (just google)