http://answers.yahoo.com/question/index?qid=20060726170104AASUYRQ"U might have changed the resolution of your monitor. Increase the resolution and things will get back to normal. To change the resolution ->
1. Right click on an empty area on your desktop and select 'Properties'
2. Go to the 'Settings' tab, and drag the 'Screen Resolution' slider to a higher value (you might have it at 800x600, increase it to 1024x768 or higher).
3. Click 'OK' to exit - you may be prompted whether you want to keep the settings or not... say 'Yes'.
4. After the increased resolution takes effect, see if everything looks normal... if not... go back to the same screen (Screen Resolution) and change the resolution to higher or back to where it was earlier.
PS: If the slider bar under 'Screen Resolution' is disabled or can't move above 800x600 - you most likely need a new driver for your graphic card."
