Password Manager is too "aggressive" in filling in boxes on websites in some cases. An example of this is at the Mischel Internet Security user forum. When attempting to send a forum user a Private Message, NIS 2008/2009 Password Manager promptly overwrites the PM recipient name with Login User Name for this website. Therefore the PM ends up getting sent to the sender...which is very annoying.
The Password Manager needs a setup option for each login password to restrict the fill in to a specific URL instead of across the entire domain. Dedicated password manager programs such as Sticky Password have this option in the setup data for each password entry and it works great.