Or a better example from the OS itself: Try to adjust the date and time settings of the OS.

I set the time zone (it gives me a map, and Seattle isn't on the map, but that's OK, I click Los Angeles, OK, that's fine).

I try to set it so that it gets its time automatically from the internet instead of setting it manually.

It gives me an error saying that NTP support is not installed.

One of the available buttons is "Install NTP support". I click on the button. The box goes away, but nothing happens. I try to set it to get its time automatically again. Again, I get the "install NTP support" box. Ad infinitum.

The proper way to fix this would be to install NTP support by using the shell. If I knew how.