Re: Mass Effect Mouse Jerkiness
Did you checked the in game mouse settings? (Options > settings > input)
Is the Hardware mouse enabled? If so disable it.
Do you have the mouse trail enabled? If so disable it. > test.
Did you tested another usb port?
Do you use software for your mouse? (like Logitech's gaming software) If so try to disable it. > test.
If this don't helps:
- Make sure the game, Origin or Steam are closed.
- Move the "Config" folder from "Documents\BioWare\Mass Effect" to your desktop.
- Start the game > test.