Share your experience!
My cursor jumps around erratically whilst typing mid sentence. Any clues apart from ghosts having a laugh.
Cheers
Owen 
Hi Owen,
welcome to Club Vaio..
Go to Start > Control panel > Hardware and Sound > Mouse..
A mouse properties window should open..
Select the Tapping tab and check that tap off when typing is selected..
I noticed this once. Took me a while, but its your wrists knocking the touch pad! try typing with the bases of your wrists further apart, or buy a keyboard if you do a lot of typing.