LCD panel fuzziness solved

Well, I just got a small acer fp553 15" LCD screen for a Windows server and was suprised to see vertical lines of fuzziness when I first powered it up. At first I thought it was a warped screen or some plastic covering but no, every so often their were simply lines of fuzzy characters. Before I packed it up and went back to the store I thought I would play with the Windows settings and sure enough, changing the monitor frequency from 60Hz to 70 or 75Hz cleared it up. I have no idea why this is but it saved a trip back to the store Happy