Can someone tell me how to get it back? On the the menu bar it only list Process Name. It no longer shows the percentage of CPU activity. I had an issue today where I had something running, couldn't tell but with Activity Mon only running the CPU was at 27% active. It's usually running at 98% idle just sitting at the Desktop and no apps running.
Here's a screenshot of what it now looks like.
Here's a screenshot of what it now looks like.