Ok, so first you should find this:
Under Hardware tab there should be the device manager:
And there should be a drop-downable line called video cards or somehting like this.
EDIT: ok, I thin kyou've already found it.
According to google, this is what I've been feared of: this is a rather lame onboard grapihc card.
Haven't you got any CD-s boundled with your PC, with onboard drivers and stuff?
Right click on that item, and there should be something about it's properties. Seek for driver. It's telling it's microsoft driver, isn't it? if it is, there's one key problem.
Google told me
http://www.versiontracker.com/dyn/moreinfo/win/36185 here's a "new" driver for you (the date says 2004, but I haven't found yet any newer).
That should be better anyway then the default windows driver.
Ok, so download the file, and install the driver for your onboard card, and hopefully that will fix your problem.
EDIT:
Ok, I've found a better one, it's here:
http://www.opendrivers.com/downloadopen ... href=37369