Be a hero and get her a new mouse, PS2 plug or USB or Wireless.  YOu can get a mouse that can do PS2 or USB for under $10.  A serial mouse is way too old.

>Have been trying to help a friend with a new HP XP Home based computer and her mouse arbitrarily goes all over the place. If I shake the mouse back and forth then go to where I want to be, it will work. But, not consistently. Is there something I am missing. TIA, Vern.
>
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