Mouse moves to corners in FPS games

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Private First Class
Hi everyone. Yesterday whenever I'd boot up an FPS game and try to play it, I'd spin around crazily after touching my mouse. After starting up COD2 and going in the menu, I noticed when I'd try to bring my mouse to the right, it'd jump to that corner. Same with all directions. This occurs in most games I try. This did not occur until yesterday and my sensitivity is the same as before. I've already tried re-installing the drivers and using different mice, but that didn't work. I've tried alt-tabbing but that didn't work either. I also seem to have some problems in programs that use 3D with dragging, not sure if that's related though and it usually fixes itself. I've tried changing mouse mats but that doesn't do anything either.

It only happens after I've moved in-game however, I can aim perfectly before attempting to move.
https://www.youtube.com/watch?v=CtNw73YPTaQ

THIS ALSO HAPPENS WITH MOUSE KEYS.
 
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