Read what it says : U can't view the monitor because no traffic is going tru your LW !

When you are a leaf , the Ultrapeer host you are connected to takes everything out of your hands .

People not reading the manual I'm used to .
People not understanding clear and simple error messages is a new one to me .

Besides , the monitor window chockes your CPU .
You will try it once , but you won't push that "Enable Monitor" button twice !
Doesn't matter what CPU youre packing ...