Go into Display properties (right click the desktop and go to properties) then click settings. It sounds like your running in 640 x 480 with 16 colours - this normally happens when you have the incorrect drivers for your graphics card installed. If the slider does not allow you to move forward, i.e. a screen size of at least 1024 x 768 at 32bit is not possible...
Call your dealer up whoever they are, ask which kind of graphics card they put in there and demand that they install the correct drivers for you as you have a screen size and colour limitation.
[ 19 November 2001: Message edited by: Superpilot ]