I have joined ubuntu 14.04 on domin using PBIS. when i check mark on my window server for change password at next login for one user and try to change it , I am unable to do it.
I found a workaround. (it works on Mint, so I suppose it works on Ubuntu too)
You have the issue with GUI, but if you switch to a console tty (example: ctrl-alt-F5) you don't. at login you'll be asked to change password (and it works) after that, you need to switch back to GUI (default should be ctrl-alt-f7)
On Mint, I found that with some themes of login manager it works with GUI too (i.e. the "ugly" simple/clean GTK)