The only thing I've added is a couple of avatar icons, two groups, three test users, and I have made it as far as the video tutorial would let me go based on the version being used during the time it was recorded. I have even logged in from three other computers from behind my router, so i've gotten that far. any suggestions you have I'm willing to try throughout the night and the weekend until I get past this little missing button issue.
-maybe in the latest version, they moved that icon. it seems the entire desktop looks a bit different. maybe. ..they just rearranged everything in this version?..when i get back to the computer a little later, I'll send you a screenshot of what I am seeing compared to what the instructor was seeing.