I have a Compaq presario V3702AU laptop.I tried updating my Windows Vista home OS to Windows 7 but faced some problem with the display. The maximum resolution of the screen that I can select is only 1024x768 whereas my Vista OS supports resolutions higher than that. Also in device manager I can see only Standard VGA graphics adaptor.
instead of following standard installation try to to install it from .inf file that extracted during drivers installation on you C: drive..
go to device manager & select update option of video card then locate the inf file if c:/spXXXX