I bought a new laptop less than a month ago (a Hewlett Packard, mid-range) and, from the off, it has randomly shrunk and blown up whatever is on the screen when I move my finger on the touchpad. It also decides to highlight text occasionally and, if I am using Word, I can end up deleting work. It is soooooo irritating - is there anything I can do to fix the size at 100% and make the touchpad less tetchy? One of the reasons I got a new laptop was because the touchpad on my old one wasn't working properly and this one is worse 
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