Hello and welcome to the forum.
Can you provide the specs on the problem computer? Manufacturer's name, model name, model number, etc.
Can you provide any details as to what produces the scrolling? What activity? Browsing? Opening application like word with multi-page documents?
Is the scrolling effect multi or single direction? Down only or down, then back up?
What device? Mouse, trackpad, keyboard??
Are you using a wireless dongle to support your input devices?