ms media and sp2 lost video driver and can not get it back

I installed microsoft media and sp2 rebooted and poof down to the lowest
color settings and can not change them and the install/driver disk from dell
will not run because I am assuming the lack of color I have uninstalled the
vga card and rebooted and still no luck, it will not find it when I tell look
on the net either.
Please help becuse this computer was carried up here from Florida and needs
to make the return trip tomarrow. (In-Laws you know)