(1) Explain your problem, don't simply post "This isn't working". What were you doing when you faced the problem? What have you tried to resolve - did you look for a solution using "Search" ? Has it happened just once or several times?
(2) It's also good to get feedback when a solution is found, return to the original post to explain how it was resolved so that more people can also use the results.
I prefer the professional over the EPPM. Prefer the install on your computer over the SAAS online version, you do not want to get held ransom to your internet service. The EPPM has complexities not worth it for your situation, for most peoples I would assume, unless you are working at boeing tweeking resources on identical builds or something.