Sony Vaio driver help needed


Solid State Member
Ok last night I changed the OS on my vaio notebook from ME to XP Pro. Problem is that my computer no longer understands that it is a laptop. So, when I try to disable the double-tap function on the touch pad, the tapping (or any touchpad related) tab no longer appears since it thinks I'm using an external mouse.

I figure this has happened before, but unfortunately my knowledge of computers is just sophisticated enough to be dangerous to myself. So if anyone knows of any driviers or anything else that would fix this, please let me know.