My screen resolution wont go above 640 480 pixels,16 colors, and it wont go any higher, and the monitor is set on default and wont change, and i cant change the display settings because nothing will happen. is there something i can download to fix the problem?

First right-click on the desktop and then left click on Properties from the menu that appears.

The display properties dialogue box will appear as shown in fig. below, click on the settings tab at the top right of the box.



The areas worth noting are: google_protectAndRun("ads_core.google_render_ad", google_handleError, google_render_ad); Screen Resolution
This slide bar is what you use to change the resolution, the options you have will depend on your graphics card and monitor, but the standard options are 800x600, 1024x768 and 1152x864.

Normally the default (in XP) is set to 800x600 which means the display will be 800 pixels wide and 600 pixels high.

Color Quality
This pull down box will contain the current colour options available, again this will depend on your grahics card and monitor, for best results select the highest option available.
Changing the ResolutionTo change your resolution simply slide the bar along to the resolution of your choice and then click the Apply button.

After clicking Apply your screen will resize to the new resolution and you will be presented with a confirm dialogue box, if you are happy with the way your screen looks then simply click Yes, if you would like to try a different resolution click No.

When you have finished simply close the Display properties box.

As for your 15" LCD BENQ Monitor, "1024 x 768" pixels is the Maximum Resolution
If you increase your screen higher than the Maximum resolution you get a black screen! because the monitor cannot support the resolution higher than "1024x768" pixels.

How to change your screen resolution Win 7-> Link

FYI
Here are typical resolutions for some popular screen sizes
19-inch screen (standard ratio): 1280 x 1024 pixels
20-inch screen (standard ratio): 1600 x 1200 pixels
22-inch screen (widescreen): 1680 x 1050 pixels
24-inch screen (widescreen): 1900 x 1200 pixels

Hope it helps.

When you cannot increase the screen resolution nor a higher color bit, this usually means the video driver has defaulted to standard VGA driver and 8 or 16 bit color.
Install or re-install the latest video driver for your model video card.
When the correct video driver is installed you will be able to change the screen resolution and 32 color bit.

In Your Desktop, Right Click -> Properties. In this Display Properties window, Click on Settings Tab.
Adjust the screen resolution to '1280 by 1024 pixels'.
Set Color Quality to 'Medium (16 bit)'
Then click on 'Advanced' Button. In Monitor Tab, Set the Screen Refresh rate to 60 Hertz. Click Apply/Ok in both the settings windows. This will Solve your Problem. Else, Try setting Color Quality to 'Highest (32 bit)'.

Hello and Welcome to FixYa!

This usually happens when you select a resolution or a refresh rate that is beyond the monitor range. For example if your monitor supports a max. resolution of 1024x768 then if you give it a signal of 1600x1200 it will display out of range.

Solution of this problem is to reduce the resolution or refresh rate frequency.

Changing screen resolution in Windows XP: First right-click on the desktop and then left click on Properties from the menu that appears.

The display properties dialogue box will appear as shown in fig 1.1 below, click on the settings tab at the top right of the box.



The areas worth noting are:

Screen Resolution
This slide bar is what you use to change the resolution, the options you have will depend on your graphics card and monitor, but the standard options are 800x600, 1024x768 and 1152x864.

Normally the default (in XP) is set to 800x600 which means the display will be 800 pixels wide and 600 pixels high.

How to Change the Screen Refresh Rate of Your Monitor loadTOCNode(2, 'summary');

1. Click Start, click Control Panel, click Appearance and Themes, and then click Display.
   
   Alternatively, right-click the desktop, and then click Properties.
2. Click the Settings tab, and then click Advanced.
3. Click the Monitor tab, and then click the screen refresh rate that you want to use.

NOTE:

• The default refresh rate setting is 60 Hertz (HZ); however, your monitor may support a higher setting. Check your manufacturer's documentation for information about the settings that your monitor supports.
• If you use a higher refresh rate, you can reduce the rate that your screen flickers; however, if you specify a refresh rate that is too high for your monitor, your screen may become unusable and your hardware may be damaged.
• Changes to the refresh rate affect all users that log on to the computer.

Source:
http://www.helpwithpcs.com/tipsandtricks/changing-screen-resolution-win-xp.htm
http://support.microsoft.com/kb/311403

Kindly rate me if i was helpful.
Regards,
Waqar

Most LCD monitors have a default refresh rate of 60 Hz. Older monitors also have limited resolution. Please check your display settings and ensure you're not using a refresh rate higher than 60, or a resolution higher than what it supports. If either one is the case, you're lucky the LCD still works.

Yes the TV could have changed your screen settings (probably to 640X480 resolution).
Go to the Control Panel, then click on Display, then the Settings TAB, then change the Screen Resolution to at least 1024X768 pixels or higher to suit your requirements.
NOTE :- The higher the resolution the smaller Icons and text will be displayed also a lower color quality display ie the best is 32 bit color.

that probably the highest ur screen can go unless u update ur video card u can purchase some really good video cards at Best Buy or Wal mart Looking to help u Shaun

how do u reset the bios settings

Sounds like you need to install your video card drivers, to get the resolution you need.