Again - keep in mind your dpi means nothing unless you go to print. The screen will display the actual pixels - 1280x960, etc.

If your monitor is set to 960 high (by whatever wide - doesn't matter), then an image that is 960 high you will need to scroll a little bit.

Why?

Because you have tool bars, menu bars, software top bars (see the attached image - the block in red), etc. - they all take up room and vary in pixel size - but they use a portion of that 960 so the image has to go below it. Hence, the scrolling...

Hope this makes sense - lemme know if that wasn't what you were looking for.

-Lew