This is a bug I noticed with regards to the fluenz account management software.
Typically I include bizarre characters to make sure that my passwords are not easily crackable by dictionary attacks or brute-forcing. This includes the ascii symbols like !!@#$%^&*(() , etc.
However, it appears that if you use one of those characters in your password when you're setting it up, fluenz acknowledges that you entered the same password twice during account registration, but if you attempt to log in with that password, the password input text processing does not appear to deal well with ascii symbols.
Observed: Login Fails:
Expected: Either password should be reported as not acceptable at password creation time OR it should let me log in.
I would hope that you allow the broadest possible set of characters for passwords, including spaces.