Dell E228WFP LCD Monitor "green squares" Questions

When not active on my PC,my Samsung monitor will sometimes display an aprx 4" square solid green box in upper left.The only way I can remove is to restart my PC. Is there a work around to this ...

...button the screen constantly changes colors (like a light show): blue, pink, orange, yellow, red, green, etc. It never stops so I just have to unplug it. When I restart the computer the blue box is ...

...squares . lines are about 2-3 inches long you can see them with tv on and they are green ,blue, red when tv is off they look like faded black no marks or damage from outside they just appeared today ...

...for eiter an audio jack, like the one on the back of your computer that would be labled light green -OR- look for either a square D style hole that would connect a A/B USB cable into it as an ...

flashing colors The monitor started to flash red green blue yellow and white,after being turned off over night it now wont turn on at all.Any help appreciated. it's in a self Diagnostic test mode. ...

My computer is on and working, but the monitor is blank and black. THe little green light showing the connection is blinking. When I turn it off and on again, the blue square the says analog-digital ...

AOC LM700 17" LCD Screen switches to black and then comes back to normal. Power light never goes green but monitor works. LED is orange when off and in sleep mode, wakes correctly on getting input. ...

...then click on "Properties" this will open up a new window. Select the "Settings" tab, then drag the green arrow in the "Screen Resolution" field to the desired setting. Since you have a "widescreen ...

...there power to the monitor? is the monitor in standby(yellow light on monitor)? is the monitor on (green light on monitor)? how is the monitor connected to the computer, VGA (square fat cable, the ...

...green squares, first square large and yellow square on the botton on right side. This is blocking the screen and I am not able to read or see what is behind it and don't know how to get rid of it. ...