First let me say this is a wicked game, your hard work on improving this gem has really shown!
Second I started a new game in Alpha 20 I've never had this issue before and it's only on this game that it is happening, my pointer (whether I'm on my controller or keyboard) seems to want to "fall" to the bottom of the screen, my character moves backwards by itself. and to select anything in my inventory is enough to give you a mini stroke.
switching controllers and my mouse
deleting all previous games, and the current one I was playing
starting a new game
tried every other game on my PC
Any help you can provide will be helpful (I'm going through withdrawals and need to smoke some zombies)
Thanks a million!