Screen Resolution will not go higher than 1024X768

Sorry, got cut off...
Anyway, every since I upgraded to XP, I've been having
this problem. Under settings, my laptop recognizes two
monitors: the default monitor itself and an
additional 'generic tv.' I only have the one monitor that
came with the laptop. The problem occurs when I go to
change the screen resolution so that the icons are not so
enormous. Once I change the setting say a resolution
higher than 1024X768, The taskbar on the bottom remains
the same, but it magnifies the desktop incredibly; and
also to the point where I can't navigate it properly. I
thought I had the latest video/display driver, NVidia,
which came with my laptop when it had ME on it. Please
let me know what I can do to resolve this issue.
-Anitra
anitra.sapula@uconn.edu