The latest version of Bartender (2.1.6) will not install on my MacPro late 2013 10.11.6 system. The installer tells me that it needs to install a helper application. It goes and does the installation, then goes back and tells me that it needs to install the helper. I found a bartender article that tells me to run: sudo rm -rf /Library/PrivilegedHelperTools/com.surteesstudios.Bartender.BartenderInstallHelper; sudo killall com.surteesstudios.Bartender.BartenderInstallHelper I run the script, the file is removed. Do the installation again, same thing. Bartender support is non existent. I have sent them 3 emails over a period of a couple of weeks without a single reply. I've always felt that it was a great product, but my opinion is changing as the product does not work and they give absolutely no help in fixing the problem.