The Act knowledgebase is a phenomenal resource for all Act users. I use it. Act users use it. Act technical support people use it. You should be using it as well.
This is an updated article that I have captured as an image for your review. If you want to see the article in greater depth, please visit this page: http://kb.act.com/app/answers/detail/a_id/29767/kw/29767.
You can also visit the Act knowledgebase here: http://kb.act.com.