Mouse jumps randomly during games

[Kentakka]

I'm using Vista 64-bit Ultimate edition.

I have a Logitech G500 Laser mouse with the latest drivers. Vista is up to date with all patches.

I play all sorts of games. Such as beta testing SWTOR. I also play things like SWG, DC Universe Online, World of Warcraft, and even FPS games like the Call of Duty series.

It doesn't matter which game I'm on.

I don't know what's causing it, but any help would be greatly appreciated.

Here is an example of what happens:

I'm suddenly walking forward(on any game) towards my next quest or even towards an enemy to try to get a headshot. I'm lined up for a headshot in a FPS game, and suddenly, I'm looking down at the ground, or the sky, or even did a 180.

This happens in every game I seem to play. It doesn't happen too often, but it happens enough that it gets annoying.

I've tried researching online, but I can't seem to find much. The few places and forums I've found where people have expressed the same problem gets no response, or they suggest that it's a driver issue.

I've got the latest Logitech G500 driver. I've also tried downgrading drivers.

The problem isn't my mouse, I don't think. I used to use another mouse, that was optical, months ago, and it was doing the same thing. It's why I purchased a new mouse and bought the Logitech G500. It's been doing the same thing since I got it.

It's a Logitech G500 Laser mouse with 5600 dpi.

Any help is appreciated.

 

[Kentakka]

This is the only thing I've found. I don't know whether to try it or not. I don't notice if the mouse jumps outside of games, because I don't keep an eye on my pointer. Inside games, it's easy to notice, because I'm suddenly facing a different direction with my character.

But this is the only thing I've found: http://www.vistax64.com/general-discussion/193254-mouse-jumps.html

Someone said something about Windows defender real-time protection doing some kinda check during mouse movements and keyboard strokes.

If that's the cause, someone here may know. Or if another thing could be causing it?