I need to make my screen wider so I CAN SEE ALL OF GAMES

You could be in overscan mode. There might be a video button on the remote that allows switching between the various video output mode.

Hi JC,
please google this with tv model number

mitsubishi xxxxxxx tv servise mode code.

go to servise mode and do the adjusment.
good luck.
regards,
nuwan

Check to see if there is dust in the vents on the monitor. Blow them out with canned air or dust them with a brush the best that you can. The lines could be caused by over heating which usually happens when the vents are plugged by dust.

If this does not solve the problem then the monitor has overheated to the point of burning pixels and needs to be replaced. Over time the lines with grow wider and wider until they cover your screen.

right click on the desktop go to properties.
then settings and adjust your screen resolution

The reason why everything is too small is because you can now see your screen on a wider/bigger view of the graphics (it's like looking down from a tall building or looking down from an airplane. The difference is that looking at your screen is not that far. The Resolution is higher than before, graphics, pictures/images, video games, movies are all displayed fine. Having a high resolution screen is a GOOD THING! If you are not comfortable with this kind of high resolution then you can switch back to lower resolution but of course the consequences would be other softwares/programs may not work. It's just your personal perception.

Look for button on the remote that reads, pic size, aspect or zoom. Press it until desired picture size is achieved.

Most plasma/LCD's have a PC monitor plug on it. Most laptops will have one too. (or even DVI, which is usually a white plug, and wider than the VGA cable)

Either way, i'm confident that you'll probably have the BLUE 15-pin standard VGA on the monitor and the computer. If so, buy that. If you have the wider white (DVI), it'll be even better!

IF the screen is wider then try to change the settings from the monitor buttons. We change change the screen size , move it , change brightness,etc.

Are you using a cable box? Do you have aspect settings on your remote? Comcast cable boxes have a hd zoom button. This will push the sides of the picture out

How much wider are we talking about? It is normal for all TV's to be a bit overscanned anyway.