Mouse problem on xp x64

[GN85]

I'm having a problem with any mouse that I plug into my computer, which is running Windows XP x64 edition.

When I move the mouse around, for instance when I move it in a circle continuously, the cursor always moves more and more towards the top left, as if something was pulling it in that direction.

I can get rid of the problem when I check the "enhance pointer precision" in the mouse options, but then the mouse becomes inaccurate when moving it towards the bottom left, which is the case on any computer I've used, so I can not keep that option checked.

I've edited SmoothMouseYCurve and SmoothMouseXCurve in my registry to get rid of mouse acceleration, but I don't think that caused this problem.

Anyone know what's the cause of this weird behavior? I tried mouses on another computer with the same specs, but running xp 32 bit, and I don't get this problem.

edit: the cursor seems to be moving the most towards the top left when I move the mouse diagonally from bottom left to top right.

 

[GN85]

Alright found the solution after uselessly reformatting. Might as well just answer my own topic since it's one of the first results that comes up when I search google, so it might help someone else

Basically I had to leave the mouse sensitivity at its default value. Increasing it or decreasing it will cause the cursor to become inaccurate.