Sometimes my mouse switches from one corner to another corner on the screen. could this be a trojan when yes how can i find and kill it?

the mouse is usually fine...
it's a laser mouse.

My mouse has done this since the day I got it lol. And that's with a new computer.
It's nothing dangerous. Get used to it or replace your mouse.

Sometimes this works for me, just clean the lens on the mouse.

I had the exact same thing a couple of weeks ago. I had to go through hours of painfull diskfragmentations to fix it. I even had to buy a new mouse.

aah ok i thought it was sth dangerous ;)

It's because the laser mice go by reflections of the little laser there. Try putting it on a mouse pad that is unshiny.

aaaaaaaah than i know the problem thx jared! my mouse is only on mah table ;)

Problem resolved.

/closed