Help With Laptop Video Card Needed!!?

So here's the gist of it. I bought a used nouns top, and didn't mess with any settings at adjectives. I downloaded yahoo, and aim and everything was fine. All of a sudden one darkness I closed my lid and opened it vertebrae up and it was similar to my desktop had shrunk, departure a black bar of roughly speaking 3 inches the whole track around. I checked with the dealer of it, and he had me disable the desktop organizer associated with the video card and reset the properties surrounded by the my computer menu for default monitors and put the resolution adjectives the way up. Everything seem fine and working perfectly. It didn't ultimate though. I shut it down and left it alone for a while and when I turned it vertebrae on, it had the black bar around it again. My husband did something to it, I have no notion what, but my screen is regular size again but the icons by my clock are tiny, and the lay out and size of fonts surrounded by my internet explorer window are the wrong size. It's hurting my eyes and driving me nuts, please lend a hand me!!

Answer:
Right-click on the desktop> go to properties> lower than appearance, change the font size to regular.

for IE, go to View >paper size> change to milieu (for default) or larger size if you wish

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