I don't use the SMART Board that often, so I don't like having the Board Tools program (that's the vertical side bar that floats on top of everything after you have SMART Board programs installed) starting up every single time I log in to my computer (Mac OS X).
The critical information I found from Tyler Grusendorf's blog post on the same issue, but I don't think it's necessary to do all the steps he proposes. Just delete the com.smarttech.boardtools.plist file from the /Library/LaunchAgents folder and that's it. It worked for me. :)