Dell laptops, like this Inspiron 1300, are a pain in the neck with Ubuntu. I've had to wrestle with the screen resolution, touchpad, microphone, and many other things that were 'automatic' in XP. I didn't like windows or XP for many reasons. That's why I switched to Ubuntu (Linux).
But it's frustrating to go through many of these same setup hassles with each distribution - Dapper, Edgy, and now Feisty. Actually, any time I use something new, I have to ask several questions and eventually ask the launchpad folks to get it working. (No way will I attempt the webcamera.)
The developers surely realized that the hassles will carry over to the next distribution.
I think I finally figured it out. Canonical and Dell are sleeping together. They want frustrated Dell laptop users like me to buy a new Dell. Sorry it took me so long to realize this. I'm getting slow in my old age.