Disconnect from projector

I connected my laptop (Windows Vista) to a desktop computer today in a classroom in order to give a presentation.  I did not properly disconnect and just unplugged the cable when I was finished.  Now my laptop display is distorted, as if it is still connected to the monitor.  How do I get it to revert back to normal without re-connecting to the desktop?

Restore Point:

http://www.howtogeek.com/howto/windows-vista/using-windows-vista-system-restore/

Do System Restore in Safe Mode, if unable to do it in Normal Mode.

Try tapping F8 at startup, and from the list of startup selections, select Safe Mode by using UP Arrow Key to go there > then hit Enter.

Try a System Restore once there, to pick a Restore Point before your problem..

Click Start > Programs > Accessories > System Tools > System Restore > pick a different time > Next > etc

If the above does not fix it:  

Go to your Laptop/Computer/Graphics Card Manufacturer's website > Drivers and Downloads Section > Key in your Model number > Look for latest Vista
 Drivers for it > Download/install them.

Then:  

[http://windows.microsoft.com/en-AU/windows-vista/Change-screen-resolution](http://windows.microsoft.com/en-AU/windows-vista/Change-screen-resolution)

Change screen resolution

Screen resolution refers to the clarity of the text and images on your screen. At higher resolutions, items appear sharper. They also appear smaller, so more items fit
 on the screen. At lower resolutions, fewer items fit on the screen, but they are larger and easier to see. At very low resolutions, however, images might have jagged edges.

For example, 640 × 480 is a lower screen resolution, and 1600 × 1200 is a higher one. CRT monitors generally display a resolution of 800 × 600 or 1024 × 768. LCD monitors can better support the higher resolutions. Whether you can increase your screen resolution
 depends on the size and capability of your monitor and the type of video card you have.

![](http://res1.windows.microsoft.com/resbox/en/Windows%20Vista/Main/2/1/21b7b862-a70d-43aa-a281-e00c38a8078d/21b7b862-a70d-43aa-a281-e00c38a8078d.png)Text
 and images are sharper and smaller at high screen resolutions

![](http://res1.windows.microsoft.com/resbox/en/Windows%20Vista/Main/2/a/2aca9658-0ee7-4b8d-a582-cac335550f26/2aca9658-0ee7-4b8d-a582-cac335550f26.png)Text
 is larger and easier to read at low screen resolutions, but images are blocky and fewer items fit on the screen

1. Open Display Settings by clicking the Start button ![](http://res2.windows.microsoft.com/resbox/en/Windows%20Vista/Main/4/f/4f6cbd09-148c-4dd8-b1f2-48f232a2fd33/4f6cbd09-148c-4dd8-b1f2-48f232a2fd33.png),
 clicking Control Panel, clicking Appearance and Personalization, clickingPersonalization, and then clicking
Display Settings.
2. Under Resolution, move the slider to the resolution you want, and then clickApply.

![](http://social.answers.microsoft.com/Resources/3.0/shared/images/merged/gl_ico.png)

Notes
- When you change the screen resolution, it affects all users who log on to the computer.
- When you set your monitor to a screen resolution that it won't support, the screen will go black for a few seconds while the monitor reverts back to the original resolution

Cheers.

* * *

Mick Murphy - Microsoft Partner