I have an application that fits on my screen perfectly at 100%, but not on my
colleague's screen, as her settings are at 1024 x 768, and mine are set to
fit more on the page.

Is there a way for this application to check the user screen properties, and
drop the page to 90% if the settings are 1024 x 768 (and to 75% if 800 x 600)?

Thanks in advance
Daniel