Tip - How do I change my Dell Touchpad settings and preferences? - Ask Dave Taylor

I have a nice new Dell laptop but am a bit frustrated by one thing: it's the first computer I've owned where if I accidentally tap or touch the trackpad surface the computer thinks it's a mouse click. Messes me up left and right. How can I disable this "tap to click" behavior on the Dell trackpad (touchpad? whatever)? Oh, and it's running Windows Vista, if that matters.