We have done some fixes for the mouse handling in Magicka 2, see if you can make right clicks now. Keybindings should also work better now if you need to customize. I can look into the problems with fullscreen on double click.
To deal with the crash it would help if I could have your log file. We now have a thread that describes how to report these here.
To deal with the crash it would help if I could have your log file. We now have a thread that describes how to report these here.