I t sounds like the The windows magnifer is turned on. Try these steps to turn it off.
You can remove it by pressing 'Start', and go to 'Control Panel' and look below the 'Ease Of Access' icon. Select 'Optimize Visiual Display' a screen called 'Make Compter Easier to see' will come up. Scroll down to the magnifier and uncheck the magnifier selection. Then click the 'Apply' button.
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