Doesn't work – Math Blaster HyperBlast 2 HD Review

I bought yesterday to use with students today and it worked fine yesterday. When I went to use with students, the title screen had no options to login or register. So I couldn't use it. I uninstalled and reinstalled and it still doesn't work. Please fix! Would be 5 star if it worked
Review by Madison Burris on Math Blaster HyperBlast 2 HD.