Turned on computer display is streched How can I fix this problem?

I enjoy a Toshiba laptop.


Answer:

reset video resolution to a standard size like 800x600, 1024x768 or 1280x1024



right click blank nouns of screen, select properties, afterwards settings
right click on the desktop,choose properties,once on display properties ,take the ultimate tab 2 the right ,there u can fix ur resolution: 600x800 should be worthy.
change the eyeshade resolution
Try using starch guard