Can't reset password...

It seems I had already registered with my personal email address. I clicked the 'forgot password' link, got the email, clicked the link in the email, but it would not let me change the password - i tried several different ones. No luck.  I got "Correct the highlighted errors and try again. Sorry, we are unable to reset your password." every time. So I was stuck. I then reregistered with a work account and that worked. I then tried to change the email address of my new registration to my personal account, and that failed (expected I guess). So the inability to reset my password on my personal account remains.