Resolutions takes some serious pratice learning to deal with. The best page I've ever made so far, that works with all resoltutions, uses % measuements in all my widths and heights through out the page so my content resizes with the screen. % mesausements are based on the browser window size not your resolution. Thus, if you resize your browser window to tinne-tiny, when using % measurements, everything in the page will shrink with it -- even though you haven't changed your screen resoltuion. And vice-versa -- if you expand your browser window, all the % content grows with the page.
It won't happen if you went one step futher by putting your body content into a DIV/container that has a set width and height in pixels.
Then, since everything contained within the DIV will be in % measurements, all of the tags/elements will "grow" or "shrink" to the appropiate size.