scrolling on its own!!!!!!!!!

D

i'm facing a strange problem
whenever i'm browsing my files or browsing on internet the scroll bar starts moving on its own.
while playing games like max payne2 the weapons change automatically.
WHAT SHOULD I DO ?????????

pls. help......

Try with another mouse

Links to help you:
page scrolling by itself - CNET Computer newbies Forums
My mouse scrolls by itself - general-discussion - windows-7<h1>windows-7</h1>
a couple answers which I think are good

It might also be set to "click lock" in
your mouse settings. Check by clicking
on start, selecting Control Panel, then
double click on the "Mouse" icon.
Check the "Buttons" tab, or something
similar.

If you have a scroll-
wheel mouse, some of them have the
ability to auto-scroll if you push down
the scroll wheel, then release it. After
pressing the scroll wheel, it will scroll
up or down when you move the mouse up or down. To stop this
action, simply press the scroll wheel
on the mouse down, then release it

Else its a problem with the mouse.

This might happen due to any malware. II had happened to me also, but running the updated antivirus scan, it found some worms. Removing the worms solved the problem. Update your antivirus and firewall software.