Right Mouse Button Keeps Breaking?

I've started a thread here http://www.garagegames.com/mg/forums/result.thread.php?qt=57924#432221 detailing a problem I'm having after modifying tutorial.base. Basically, at some point (and if I knew that point I wouldn't be posting here) I've modified tutorial.base to the point that I can no longer pan with the right mouse button.

If anyone can help me, I'd really, really appreciate it. Again the thread is in the Mac OS X forum, because at first I thought it was a Mac OS X problem -- now I'm no longer sure.

Michael Rogers