These are the steps I followed:
- install Lubuntu 14.04
- install Ubuntu desktop 14.04
- install ubuntu-tweak-tool
- install unity-tweak-tool (this did not work, it asked me to install missing packages)
- install gnome-tweak-tool
- download and install the macbuntu theme from www.noobslab.com
Result: when I start the Ubuntu desktop, the system menu in the upper right corner isn't visible and I have to shut down/restart from a terminal.
Can anyone help?