Unfortunately I don't have one of those chipsets so I can't tell you what exactly needs to be done. But it's likely that you will have to modify the /etc/X11/xorg.conf
file, and maybe even download and install the latest intel drivers. Maybe somebody using these chipsets can give you some more specific pointers.
for some (general) instructions on editing the xorg.conf file. I guess the intel-specific section should be expanded a bit, as that seems somewhat inacurate considering your experience.
The easiest/quickest way to get going right now, would probably be to set the driver to "vesa" and use UI1 for the time being until you have everything setup.