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Right click my computer ,go to properties ,then click hardware tab ,then go to device manager when device manager opens ,on the right pane u will find monitor listed on clicking the + mark you will find Plug & play monitor listed, right click on the monitor ,you will get a option update driver ,then locate the driver files,&that's it.
You need to change the monitor type. If you open the display settings and then setting tab-advanced-monitor you see a properties button. Click that and then the driver tab on the new window. What you need to do is go to Acers website und get the "INF" or driver file for your monitor. download and save this file. Then go back to the drivers window and click the reinstall drivers button and then point it towards the file you downloaded. This file lets windows know what settings the monitor can use. After that is installed and you go back to the settings window you should find that the allowed display resolutions have changed. You should be able to change it to one the monitor displays properly now.
Right-click on your desktop. You are not going to look for a "monitor" but you're going to be looking for "display properties." So, after you right click on the desktop, click on the properties and it should show you the resolution in the lower left of the window (assuming you're using XP) Vista and Windows 7 use "personalize"\." Anyway, assuming the correct video drivers are installed, you can change the resolution within those menu items.
You don't specify your machine type, or the operating system, but let's assume a desktop computer and Windows XP...
Was the monitor recognized properly by the video driver?
Go to Display Properties, settings, advanced, monitor and see if Plug and Play monitor is installed. All modern graphics cards talk to the monitor to discover it's capabilities and should adjust the available resolutions so that the monitor's native resolution is available for choosing. If some other monitor is listed there, change it to Plug and Play monitor. If still having troubles, you can do two things: - update the video driver for your graphics card - find the monitor's .inf file (it should be on a CD that comes with the monitor, or can be downloaded from DELL site), and install this instead of the Plug and Play monitor or whatever you have in your monitor setup (as above, go to monitor - properties - update driver).
The resolution is set from the computer.
Monitors will have a max resolution, but you will set it up from the display settings.
Most likely your video card or video driver is having the problem.
Right click "My Computer" then click "properties"
Click Hardware tab then "Device Manager"
If you see a yellow or red mark over the video then you need to download the video driver uninstall the old one and reinstall the new one.
You can the driver from the manufacturer website of your computer brand
Almost the same steps
Right click "Computer" then properties
Click on "Device Manager"
If there are no yellow or red marks on the video device
I would recommend following the dell troubleshooting guide for your monitor
Restart your system and keep tapping the F8 Key as soon as you start the system. you should be at an advanced OS options menu, select SafeMode with VGA and proceed to logon to windows. Once in windows, right click on your desktop > properties > Settings > reduce settings to 800x600 > click OK > restart system. Now the display should be back on the monitor. Now read the manual to understand the highest supported resolution for this monitor + set the same as mentioned before on your system.
I assume you're using windows XP or Vista ? The OS uses data from the monitor to tell it resolutions and refresh rates supported. If you get flicker and cannot alter the refresh rate, it is because the monitor will not supprt a fatsre refresh rate. Your only option, unfortunately, is to get a new monitor, or the cheaper option, use a different resolution.
If you just want to adjust the display settings so that they are more to your liking go to Control Panel and open Display. When the Display Properties box opens click on the settings tab. Use the slider bar in Screen Resolution to adjust to 1024x768 or whatever resolution your monitor displays best at. To the right use the pull down arrow to select the highest color quality you can select. Then click on the Advanced button on the bottom left and you should see a Monitor tab. Click on that and ensure your refresh rate is 60 Hertz. Save your settings, accept the change confirmation when it appears and your monitor should be good to go. I have about 90 Dell LCDs and the default Windows drivers for the LCDs usually work great.