I have a Dell Vostro V13, which Canonical claim is "Certified" for Ubuntu. So it surprises me that the synaptics trackpad isn't recognised as such and defaults to psmouse emulation. This means no multitouch, no gestures, and more importantly, no mousewheel scrolling.
Because it's not loading the synaptic driver, running gpointing-device-settings doesn't help.
I've found this bug which suggests a fix has been committed, but I can't see a way of getting this loaded on my Maverick build. I've tried backports and proposed repos in synaptic, but no joy.