Problems With Go 7400 and Vista

I finally made the upgrade to Vista, and while it has mostly been great, I have one main problem with my graphics driver. First off for the sake of relevant information, I'm running a HP Pavilion dv5000 which is listed as Vista Capable, and a nVidia GeForce Go 7400. Everything seemed fine when I thought Vista had installed a good driver right on installation. Things were running fine until I played a PC game, which required me to switch resolutions, and it was not interpolated well. Like nothing was smoothed out, it looks like it was pixel resized (badly), and this also cut performance A LOT. I never had this problem with XP.

So I went to nVidias site to download the newest driver for the 7 series, but when I run it, after it unzips and tries to start the installer, it says "The nVidia setup program could not find any drivers compatible with your device" or something like that. So I tried installing the driver from HP's site, but it's terribly out of date and well.... didn't change a thing.

One more question for everyone familiar with Vista... How do I access the graphics driver? I'm talking like the menus where I can tweak options like Digital Color Vibrance, or how my screen aspect ratio changes when running full screen resolutions in games, or TV out. In Xp it was the menu when you were in the display settings and clicked advanced, but I can't find it in Vista.... any help is greatly appreciated.