ok lets try another way what monitor/laptop do you have? and what resolution do you have it set to now? and also what frequncy? 60hz , 70hz?
that res i gave you was just as an example you may have a widescreen monitor which requires dirferant resolutions to look correct
also could you post a screenshot of your desktop with internet explorer open , so we can see your issue just to make sure were not barking up the wrong tree going the resolution route , it could be something else like your DPI setting (which i doubt but its worth a look)