Unable to enter or change passwords

I had this problem in ver 4.0.4 and just gave up and quit messing with OpenMetings.  But I came back and revisited it to find I am having the same problem.

When I try to add a new user, or change the Admin password, a pop up box opens wanting to "Check Password".  I have tried entering in the password that I am trying to change, thinking it might be wanting to verify it, which doesn't work and I try entering in the admin password, which also doesn't work. 

Thanks in advance.