I conducted a full OS reinstall on my old Dell Studio 1555, which I still use for some projects. The touchpad is acting a little flaky. There's a little Dell utility that allows me to tweak the touchpad behavior just a bit, and, for the life of me, I can't recall the name of the utility. When it's installed, there's an extra tab on Mouse Properties dialog in the Control Panel. Note that I'm not looking for a touchpad/mouse driver
. All the latest-and-greatest drivers are installed for the touchpad.