I've just uploaded Beta 0.8 R2, which corrects an oversight in the mouse control.

Early in the project I was experimenting with reducing the mouse deadzone and accidentally left it in its modified state. This was before I added the launcher and could make such things optional. So now it is!

The default setting will match the original game's mouse controls, with a new "fine" setting available if you prefer.

You can just run the new installer to update, or overwrite the files manually from the ZIP files. Your current configuration will be preserved.