I have FB 4.7 Premium Trial Edition on Windows 7 64-bit. I have FlashPlayer 11 in IE 8. I have installed the code coverage jar into the config folder as directed. In the coverage perspective the coverage tool says "Listening..." and then "Stopped.." as expected, but when I click on the "Generate Report" button the Current Report view appears, but there is nothing in it.
I can debug the app, stop at breakpoints, etc, so I'm pretty sure the requirements for debuggable code and FlashPlayer are met.