Hmmm…you’re prolly unlikely to come across this one.
For some reason, when I installed Flex, the Adobe Flash Player 9 debugger didn’t work. I followed the steps that Adobe laid out for me but to no avail. I then read that you need to actually use an Adobe uninstaller to remove Flash Player 9. Ohhhhhhhhh.
The uninstaller is here:
And the Flash Player 9 with debugger is here: