Re: Dell Vostro 3568 everything looks blurry and fuzzy
Run a screen self-test: hold D through powerup. If the test screens look the same, the screen is bad.
If not, look for another cause - resolution settings (be sure your system is set to the proper resolution for your screen, probably 1366X768 unless it's FHD; the screen type is listed in setup -- F2 at powerup). Next would be a driver issue, cable issue or GPU/mainboard issue.