Sets the mouse tracking speed (acceleration level).
The change takes effect immediately for the current login session and is also persisted
to preferences so it survives a restart. Values outside the valid range or non-finite
values are rejected with a warning and no change is made.
Sets the mouse tracking speed (acceleration level). The change takes effect immediately for the current login session and is also persisted to preferences so it survives a restart. Values outside the valid range or non-finite values are rejected with a warning and no change is made.